Search a number
-
+
155000105480 = 23511379520891
BaseRepresentation
bin1001000001011010111…
…0011110101000001000
3112211002020001012010102
42100112232132220020
510014420011333410
6155112302104532
714125022105153
oct2202656365010
9484066035112
10155000105480
115a80a578430
122605927b148
131180244705c
14770587cc9a
154072a572a5
hex2416b9ea08

155000105480 has 64 divisors (see below), whose sum is σ = 390737407680. Its totient is φ = 54840326400.

The previous prime is 155000105473. The next prime is 155000105509. The reversal of 155000105480 is 84501000551.

It is a super-2 number, since 2×1550001054802 (a number of 23 digits) contains 22 as substring.

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, 4744166 + ... + 4776725.

It is an arithmetic number, because the mean of its divisors is an integer number (6105271995).

Almost surely, 2155000105480 is an apocalyptic number.

155000105480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155000105480 is an abundant number, since it is smaller than the sum of its proper divisors (235737302200).

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

155000105480 is a wasteful number, since it uses less digits than its factorization.

155000105480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520950 (or 9520946 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 155000105480 in words is "one hundred fifty-five billion, one hundred five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 37 40 44 55 74 88 110 148 185 220 296 370 407 440 740 814 1480 1628 2035 3256 4070 8140 16280 9520891 19041782 38083564 47604455 76167128 95208910 104729801 190417820 209459602 352272967 380835640 418919204 523649005 704545934 837838408 1047298010 1409091868 1761364835 2094596020 2818183736 3522729670 3875002637 4189192040 7045459340 7750005274 14090918680 15500010548 19375013185 31000021096 38750026370 77500052740 155000105480