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105654917 = 295321297
BaseRepresentation
bin1100100110000…
…10101010000101
321100210211022002
412103002222011
5204021424132
614252315045
72422023554
oct623025205
9240724262
10105654917
1154704115
122b472a85
1318b73704
1410063d9b
159420262
hex64c2a85

105654917 has 12 divisors (see below), whose sum is σ = 111485220. Its totient is φ = 100009728.

The previous prime is 105654911. The next prime is 105654931. The reversal of 105654917 is 719456501.

It can be written as a sum of positive squares in 6 ways, for example, as 34269316 + 71385601 = 5854^2 + 8449^2 .

It is not a de Polignac number, because 105654917 - 218 = 105392773 is a prime.

It is a super-2 number, since 2×1056549172 = 22325922972553778, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a pancake number, because a pancake can be divided into 105654917 parts by 14536 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105654911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80813 + ... + 82109.

It is an arithmetic number, because the mean of its divisors is an integer number (9290435).

Almost surely, 2105654917 is an apocalyptic number.

It is an amenable number.

105654917 is a deficient number, since it is larger than the sum of its proper divisors (5830303).

105654917 is an equidigital number, since it uses as much as digits as its factorization.

105654917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 105654917 is about 10278.8577672813. The cubic root of 105654917 is about 472.7482222729.

The spelling of 105654917 in words is "one hundred five million, six hundred fifty-four thousand, nine hundred seventeen".

Divisors: 1 29 53 1297 1537 2809 37613 68741 81461 1993489 3643273 105654917