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155014072190 = 2521191731509
BaseRepresentation
bin1001000001011110001…
…1110000011101111110
3112211010012022202211222
42100113203300131332
510014432100302230
6155113521313342
714125251605345
oct2202743603576
9484105282758
10155014072190
115a81744786a
1226061a95852
13118052c7293
147707676b5c
154073db56e5
hex24178f077e

155014072190 has 16 divisors (see below), whose sum is σ = 279038878560. Its totient is φ = 62002618080.

The previous prime is 155014072177. The next prime is 155014072247. The reversal of 155014072190 is 91270410551.

It is a happy number.

It is a super-2 number, since 2×1550140721902 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155014072190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153845 + ... + 577664.

It is an arithmetic number, because the mean of its divisors is an integer number (17439929910).

Almost surely, 2155014072190 is an apocalyptic number.

155014072190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155014072190 is a deficient number, since it is larger than the sum of its proper divisors (124024806370).

155014072190 is a wasteful number, since it uses less digits than its factorization.

155014072190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752707.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 155014072190 in words is "one hundred fifty-five billion, fourteen million, seventy-two thousand, one hundred ninety".

Divisors: 1 2 5 10 21191 42382 105955 211910 731509 1463018 3657545 7315090 15501407219 31002814438 77507036095 155014072190