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122150631 = 3238919891
BaseRepresentation
bin1110100011111…
…01111011100111
322111211220011110
413101331323213
5222232310011
620042040103
73012156201
oct721757347
9274756143
10122150631
1162a50639
1234aa9033
131c3caaa5
1412319771
15aaccba6
hex747dee7

122150631 has 16 divisors (see below), whose sum is σ = 171866880. Its totient is φ = 77014080.

The previous prime is 122150621. The next prime is 122150641. The reversal of 122150631 is 136051221.

It is an interprime number because it is at equal distance from previous prime (122150621) and next prime (122150641).

It is not a de Polignac number, because 122150631 - 211 = 122148583 is a prime.

It is a super-2 number, since 2×1221506312 = 29841553307396322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122150598 and 122150607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122150621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805 + ... + 16086.

It is an arithmetic number, because the mean of its divisors is an integer number (10741680).

Almost surely, 2122150631 is an apocalyptic number.

122150631 is a deficient number, since it is larger than the sum of its proper divisors (49716249).

122150631 is a wasteful number, since it uses less digits than its factorization.

122150631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20006.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 122150631 is about 11052.1776587241. The cubic root of 122150631 is about 496.1716028998.

The spelling of 122150631 in words is "one hundred twenty-two million, one hundred fifty thousand, six hundred thirty-one".

Divisors: 1 3 23 69 89 267 2047 6141 19891 59673 457493 1372479 1770299 5310897 40716877 122150631