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157075106 = 278537553
BaseRepresentation
bin10010101110011…
…00011010100010
3101221120020112112
421113030122202
5310202400411
623330355322
73615054626
oct1127143242
9357506475
10157075106
1180734941
124472bb42
1326708366
1416c0b186
15dbcab8b
hex95cc6a2

157075106 has 4 divisors (see below), whose sum is σ = 235612662. Its totient is φ = 78537552.

The previous prime is 157075097. The next prime is 157075129. The reversal of 157075106 is 601570751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601570751 = 2920743819.

It can be written as a sum of positive squares in only one way, i.e., 93219025 + 63856081 = 9655^2 + 7991^2 .

It is a super-2 number, since 2×1570751062 = 49345177849822472, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 39268775 + ... + 39268778.

Almost surely, 2157075106 is an apocalyptic number.

157075106 is a deficient number, since it is larger than the sum of its proper divisors (78537556).

157075106 is an equidigital number, since it uses as much as digits as its factorization.

157075106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78537555.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 157075106 is about 12532.9607834701. The cubic root of 157075106 is about 539.5550816247. Note that the first 3 decimals are identical.

The spelling of 157075106 in words is "one hundred fifty-seven million, seventy-five thousand, one hundred six".

Divisors: 1 2 78537553 157075106