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20967042 = 236157287
BaseRepresentation
bin100111111111…
…0111010000010
31110110020101010
41033332322002
520331421132
62025221350
7343134255
oct117767202
943406333
1020967042
1110920938
127031856
134461645
142adb09c
151c926cc
hex13fee82

20967042 has 16 divisors (see below), whose sum is σ = 42622272. Its totient is φ = 6874320.

The previous prime is 20967041. The next prime is 20967043. The reversal of 20967042 is 24076902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20967041) and next prime (20967043).

It is not an unprimeable number, because it can be changed into a prime (20967041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28278 + ... + 29009.

It is an arithmetic number, because the mean of its divisors is an integer number (2663892).

Almost surely, 220967042 is an apocalyptic number.

20967042 is an abundant number, since it is smaller than the sum of its proper divisors (21655230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20967042 is a wasteful number, since it uses less digits than its factorization.

20967042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57353.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20967042 is about 4578.9782703131. The cubic root of 20967042 is about 275.7480109188.

The spelling of 20967042 in words is "twenty million, nine hundred sixty-seven thousand, forty-two".

Divisors: 1 2 3 6 61 122 183 366 57287 114574 171861 343722 3494507 6989014 10483521 20967042