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151970457 = 350656819
BaseRepresentation
bin10010000111011…
…10001010011001
3101120221220021110
421003232022121
5302401023312
623025130533
73523504362
oct1103561231
9346856243
10151970457
1178868721
1242a89a49
132563ba62
141627cb69
15d51d43c
hex90ee299

151970457 has 4 divisors (see below), whose sum is σ = 202627280. Its totient is φ = 101313636.

The previous prime is 151970419. The next prime is 151970473. The reversal of 151970457 is 754079151.

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 not a de Polignac number, because 151970457 - 28 = 151970201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151970057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25328407 + ... + 25328412.

It is an arithmetic number, because the mean of its divisors is an integer number (50656820).

Almost surely, 2151970457 is an apocalyptic number.

It is an amenable number.

151970457 is a deficient number, since it is larger than the sum of its proper divisors (50656823).

151970457 is an equidigital number, since it uses as much as digits as its factorization.

151970457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50656822.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 151970457 is about 12327.6298208536. The cubic root of 151970457 is about 533.6457518068.

The spelling of 151970457 in words is "one hundred fifty-one million, nine hundred seventy thousand, four hundred fifty-seven".

Divisors: 1 3 50656819 151970457