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152023897 = 473234551
BaseRepresentation
bin10010000111110…
…11001101011001
3101121001121120201
421003323031121
5302404231042
623030222201
73524116234
oct1103731531
9347047521
10152023897
11788a4893
1242ab4961
132565a18c
141629441b
15d52e1b7
hex90fb359

152023897 has 4 divisors (see below), whose sum is σ = 155258496. Its totient is φ = 148789300.

The previous prime is 152023849. The next prime is 152023901. The reversal of 152023897 is 798320251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152023897 - 227 = 17806169 is a prime.

It is a super-2 number, since 2×1520238972 = 46222530518133218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152023397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617229 + ... + 1617322.

It is an arithmetic number, because the mean of its divisors is an integer number (38814624).

Almost surely, 2152023897 is an apocalyptic number.

It is an amenable number.

152023897 is a deficient number, since it is larger than the sum of its proper divisors (3234599).

152023897 is an equidigital number, since it uses as much as digits as its factorization.

152023897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234598.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 152023897 is about 12329.7971191743. The cubic root of 152023897 is about 533.7082961710.

The spelling of 152023897 in words is "one hundred fifty-two million, twenty-three thousand, eight hundred ninety-seven".

Divisors: 1 47 3234551 152023897