Search a number
-
+
29860480 = 275133797
BaseRepresentation
bin111000111101…
…0001010000000
32002012001212201
41301322022000
530121013410
62544002544
7511544536
oct161721200
962161781
1029860480
1115945691
12a000454
136256630
143d74156
15294c83a
hex1c7a280

29860480 has 128 divisors (see below), whose sum is σ = 79768080. Its totient is φ = 10616832.

The previous prime is 29860477. The next prime is 29860487. The reversal of 29860480 is 8406892.

29860480 = T455 + T456 + ... + T648.

It can be written as a sum of positive squares in 8 ways, for example, as 13017664 + 16842816 = 3608^2 + 4104^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (29860487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307792 + ... + 307888.

Almost surely, 229860480 is an apocalyptic number.

29860480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29860480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39884040).

29860480 is an abundant number, since it is smaller than the sum of its proper divisors (49907600).

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

29860480 is a wasteful number, since it uses less digits than its factorization.

29860480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 29860480 is about 5464.4743571546. The cubic root of 29860480 is about 310.2408118454.

The spelling of 29860480 in words is "twenty-nine million, eight hundred sixty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 37 40 52 64 65 74 80 97 104 128 130 148 160 185 194 208 260 296 320 370 388 416 481 485 520 592 640 740 776 832 962 970 1040 1184 1261 1480 1552 1664 1924 1940 2080 2368 2405 2522 2960 3104 3589 3848 3880 4160 4736 4810 5044 5920 6208 6305 7178 7696 7760 8320 9620 10088 11840 12416 12610 14356 15392 15520 17945 19240 20176 23680 25220 28712 30784 31040 35890 38480 40352 46657 50440 57424 61568 62080 71780 76960 80704 93314 100880 114848 143560 153920 161408 186628 201760 229696 233285 287120 307840 373256 403520 459392 466570 574240 746512 807040 933140 1148480 1493024 1866280 2296960 2986048 3732560 5972096 7465120 14930240 29860480