Search a number
-
+
8461875380 = 2257127475921
BaseRepresentation
bin1111110000101110…
…11111100010110100
3210211201111210210212
413320113133202310
5114312220003010
63515355204552
7416456516420
oct77027374264
923751453725
108461875380
113652565242
121781a46758
13a4b13a16a
145a3b77b80
15347d32505
hex1f85df8b4

8461875380 has 48 divisors (see below), whose sum is σ = 20468453376. Its totient is φ = 2878364160.

The previous prime is 8461875371. The next prime is 8461875419. The reversal of 8461875380 is 835781648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220181 + ... + 255740.

It is an arithmetic number, because the mean of its divisors is an integer number (426426112).

Almost surely, 28461875380 is an apocalyptic number.

It is an amenable number.

8461875380 is an abundant number, since it is smaller than the sum of its proper divisors (12006577996).

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

8461875380 is a wasteful number, since it uses less digits than its factorization.

8461875380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476064 (or 476062 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The square root of 8461875380 is about 91988.4524274650. The cubic root of 8461875380 is about 2037.7717708920.

The spelling of 8461875380 in words is "eight billion, four hundred sixty-one million, eight hundred seventy-five thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 127 140 254 508 635 889 1270 1778 2540 3556 4445 8890 17780 475921 951842 1903684 2379605 3331447 4759210 6662894 9518420 13325788 16657235 33314470 60441967 66628940 120883934 241767868 302209835 423093769 604419670 846187538 1208839340 1692375076 2115468845 4230937690 8461875380