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22069957 = 713298363
BaseRepresentation
bin101010000110…
…0001011000101
31112112021021211
41110030023011
521122214312
62105011421
7355406620
oct124141305
945467254
1022069957
1111504538
127483b71
134759660
142d06db7
151e0e3a7
hex150c2c5

22069957 has 16 divisors (see below), whose sum is σ = 28103040. Its totient is φ = 16857792.

The previous prime is 22069939. The next prime is 22069973. The reversal of 22069957 is 75996022.

It is a happy number.

It is not a de Polignac number, because 22069957 - 27 = 22069829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22069997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543 + ... + 6820.

It is an arithmetic number, because the mean of its divisors is an integer number (1756440).

Almost surely, 222069957 is an apocalyptic number.

It is an amenable number.

22069957 is a deficient number, since it is larger than the sum of its proper divisors (6033083).

22069957 is a wasteful number, since it uses less digits than its factorization.

22069957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 22069957 is about 4697.8672820760. The cubic root of 22069957 is about 280.5006222429.

The spelling of 22069957 in words is "twenty-two million, sixty-nine thousand, nine hundred fifty-seven".

Divisors: 1 7 13 29 91 203 377 2639 8363 58541 108719 242527 761033 1697689 3152851 22069957