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38870022 = 2343150659
BaseRepresentation
bin1001010001000…
…1110000000110
32201010210122110
42110101300012
534422320042
63505041450
7651250452
oct224216006
981123573
1038870022
111aa39694
1211026286
13808c419
14523b662
15362c09c
hex2511c06

38870022 has 16 divisors (see below), whose sum is σ = 79548480. Its totient is φ = 12655272.

The previous prime is 38870021. The next prime is 38870057. The reversal of 38870022 is 22007883.

It is a super-2 number, since 2×388700222 = 3021757220560968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38870021) 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, 75072 + ... + 75587.

It is an arithmetic number, because the mean of its divisors is an integer number (4971780).

Almost surely, 238870022 is an apocalyptic number.

38870022 is an abundant number, since it is smaller than the sum of its proper divisors (40678458).

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

38870022 is a wasteful number, since it uses less digits than its factorization.

38870022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150707.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 38870022 is about 6234.5827446590. The cubic root of 38870022 is about 338.7439874933.

The spelling of 38870022 in words is "thirty-eight million, eight hundred seventy thousand, twenty-two".

Divisors: 1 2 3 6 43 86 129 258 150659 301318 451977 903954 6478337 12956674 19435011 38870022