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136622031 = 3713895623
BaseRepresentation
bin10000010010010…
…10111111001111
3100112002010012020
420021022333033
5234433401111
621320141223
73246160650
oct1011127717
9315063166
10136622031
1170135177
1239907813
13223c6950
1414205527
15beda906
hex824afcf

136622031 has 32 divisors (see below), whose sum is σ = 226759680. Its totient is φ = 71241984.

The previous prime is 136622023. The next prime is 136622039. The reversal of 136622031 is 130226631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136622023) and next prime (136622039).

It is not a de Polignac number, because 136622031 - 23 = 136622023 is a prime.

It is a super-2 number, since 2×1366220312 = 37331158709129922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136621992 and 136622010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136622039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21486 + ... + 27108.

It is an arithmetic number, because the mean of its divisors is an integer number (7086240).

Almost surely, 2136622031 is an apocalyptic number.

136622031 is a deficient number, since it is larger than the sum of its proper divisors (90137649).

136622031 is a wasteful number, since it uses less digits than its factorization.

136622031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 136622031 is about 11688.5427235391. The cubic root of 136622031 is about 515.0391537141.

Adding to 136622031 its reverse (130226631), we get a palindrome (266848662).

The spelling of 136622031 in words is "one hundred thirty-six million, six hundred twenty-two thousand, thirty-one".

Divisors: 1 3 7 13 21 39 89 91 267 273 623 1157 1869 3471 5623 8099 16869 24297 39361 73099 118083 219297 500447 511693 1501341 1535079 3503129 6505811 10509387 19517433 45540677 136622031