Search a number
-
+
8051472900 = 2234529972
BaseRepresentation
bin1110111111110011…
…11011101000000100
3202210010021012110000
413133321323220010
5112442134113100
63410535001300
7403344250632
oct73771735004
922703235400
108051472900
113461934839
121688509230
139b40c5a63
14565466352
15321cb6900
hex1dfe7ba04

8051472900 has 135 divisors (see below), whose sum is σ = 26125898799. Its totient is φ = 2144905920.

The previous prime is 8051472887. The next prime is 8051472929. The reversal of 8051472900 is 92741508.

The square root of 8051472900 is 89730.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 536663556 + 7514809344 = 23166^2 + 86688^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 8075202 + ... + 8076198.

Almost surely, 28051472900 is an apocalyptic number.

8051472900 is the 89730-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8051472900

8051472900 is an abundant number, since it is smaller than the sum of its proper divisors (18074425899).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8051472900 is an equidigital number, since it uses as much as digits as its factorization.

8051472900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The cubic root of 8051472900 is about 2004.2802415647.

Multiplying 8051472900 by its sum of digits (36), we get a square (289853024400 = 5383802).

8051472900 divided by its sum of digits (36) gives a square (223652025 = 149552).

The spelling of 8051472900 in words is "eight billion, fifty-one million, four hundred seventy-two thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 270 300 324 405 450 540 675 810 900 997 1350 1620 1994 2025 2700 2991 3988 4050 4985 5982 8100 8973 9970 11964 14955 17946 19940 24925 26919 29910 35892 44865 49850 53838 59820 74775 80757 89730 99700 107676 134595 149550 161514 179460 224325 269190 299100 323028 403785 448650 538380 672975 807570 897300 994009 1345950 1615140 1988018 2018925 2691900 2982027 3976036 4037850 4970045 5964054 8075700 8946081 9940090 11928108 14910135 17892162 19880180 24850225 26838243 29820270 35784324 44730405 49700450 53676486 59640540 74550675 80514729 89460810 99400900 107352972 134191215 149101350 161029458 178921620 223652025 268382430 298202700 322058916 402573645 447304050 536764860 670956075 805147290 894608100 1341912150 1610294580 2012868225 2683824300 4025736450 8051472900