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141970057 = 383370679
BaseRepresentation
bin10000111011001…
…00101010001001
3100220010211022021
420131210222021
5242321020212
622030524441
73342503605
oct1035445211
9326124267
10141970057
1173158229
123b666721
1323549c68
1414bd8505
15c6e5307
hex8764a89

141970057 has 4 divisors (see below), whose sum is σ = 142341120. Its totient is φ = 141598996.

The previous prime is 141970027. The next prime is 141970067. The reversal of 141970057 is 750079141.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750079141 = 7107154163.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-141970057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141970027) 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, 184957 + ... + 185722.

It is an arithmetic number, because the mean of its divisors is an integer number (35585280).

Almost surely, 2141970057 is an apocalyptic number.

It is an amenable number.

141970057 is a deficient number, since it is larger than the sum of its proper divisors (371063).

141970057 is an equidigital number, since it uses as much as digits as its factorization.

141970057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371062.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 141970057 is about 11915.1188412034. The cubic root of 141970057 is about 521.6736716910.

The spelling of 141970057 in words is "one hundred forty-one million, nine hundred seventy thousand, fifty-seven".

Divisors: 1 383 370679 141970057