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152720676 = 22324242241
BaseRepresentation
bin10010001101001…
…01010100100100
3101122101000101100
421012211110210
5303044030201
623053200100
73533050533
oct1106452444
9348330340
10152720676
1179230339
1243190030
1325842384
14163d631a
15d61a886
hex91a5524

152720676 has 18 divisors (see below), whose sum is σ = 386044022. Its totient is φ = 50906880.

The previous prime is 152720669. The next prime is 152720749. The reversal of 152720676 is 676027251.

It can be written as a sum of positive squares in only one way, i.e., 84162276 + 68558400 = 9174^2 + 8280^2 .

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: 4242241 = 152720676 / (1 + 5 + 2 + 7 + 2 + 0 + 6 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 152720676.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2121085 + ... + 2121156.

Almost surely, 2152720676 is an apocalyptic number.

It is an amenable number.

152720676 is an abundant number, since it is smaller than the sum of its proper divisors (233323346).

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

152720676 is a wasteful number, since it uses less digits than its factorization.

152720676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242251 (or 4242246 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 152720676 is about 12358.0207153087. The cubic root of 152720676 is about 534.5224445499.

The spelling of 152720676 in words is "one hundred fifty-two million, seven hundred twenty thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 36 4242241 8484482 12726723 16968964 25453446 38180169 50906892 76360338 152720676