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151815030156 = 22324217084171
BaseRepresentation
bin1000110101100011100…
…0011000010110001100
3112111212020202121011200
42031120320120112030
54441404121431111
6153424242545500
713653055315236
oct2153070302614
9474766677150
10151815030156
1159425699179
122550a668290
13114156027ba
1474c285b256
153e38106256
hex2358e1858c

151815030156 has 18 divisors (see below), whose sum is σ = 383754659652. Its totient is φ = 50605010040.

The previous prime is 151815030121. The next prime is 151815030161. The reversal of 151815030156 is 651030518151.

It is a happy number.

151815030156 is a `hidden beast` number, since 151 + 8 + 150 + 301 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4217084171 = 151815030156 / (1 + 5 + 1 + 8 + 1 + 5 + 0 + 3 + 0 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 151815030156.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2108542050 + ... + 2108542121.

It is an arithmetic number, because the mean of its divisors is an integer number (21319703314).

Almost surely, 2151815030156 is an apocalyptic number.

It is an amenable number.

151815030156 is an abundant number, since it is smaller than the sum of its proper divisors (231939629496).

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

151815030156 is a wasteful number, since it uses less digits than its factorization.

151815030156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217084181 (or 4217084176 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The spelling of 151815030156 in words is "one hundred fifty-one billion, eight hundred fifteen million, thirty thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 4217084171 8434168342 12651252513 16868336684 25302505026 37953757539 50605010052 75907515078 151815030156