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155161330 = 2516395191
BaseRepresentation
bin10010011111110…
…01001011110010
3101210222000022221
421033321023302
5304210130310
623221351254
73562564252
oct1117711362
9353860287
10155161330
117a648005
1243b6852a
13261b824c
141686d962
15d94dada
hex93f92f2

155161330 has 16 divisors (see below), whose sum is σ = 281006784. Its totient is φ = 61683120.

The previous prime is 155161291. The next prime is 155161399. The reversal of 155161330 is 33161551.

It is a junction number, because it is equal to n+sod(n) for n = 155161295 and 155161304.

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, 45966 + ... + 49225.

It is an arithmetic number, because the mean of its divisors is an integer number (17562924).

Almost surely, 2155161330 is an apocalyptic number.

155161330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155161330 is a deficient number, since it is larger than the sum of its proper divisors (125845454).

155161330 is a wasteful number, since it uses less digits than its factorization.

155161330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95361.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 155161330 is about 12456.3770816397. The cubic root of 155161330 is about 537.3548394737.

The spelling of 155161330 in words is "one hundred fifty-five million, one hundred sixty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 163 326 815 1630 95191 190382 475955 951910 15516133 31032266 77580665 155161330