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106478031 = 3111392167
BaseRepresentation
bin1100101100010…
…11100111001111
321102100122101210
412112023213033
5204224244111
614322105503
72432022402
oct626134717
9242318353
10106478031
1155116580
122b7ab293
13190a126a
14101d9d39
1595340a6
hex658b9cf

106478031 has 24 divisors (see below), whose sum is σ = 156933504. Its totient is φ = 63684240.

The previous prime is 106478027. The next prime is 106478039. The reversal of 106478031 is 130874601.

It is a happy number.

It is not a de Polignac number, because 106478031 - 22 = 106478027 is a prime.

It is a super-2 number, since 2×1064780312 = 22675142171273922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106478031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106478039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637510 + ... + 637676.

It is an arithmetic number, because the mean of its divisors is an integer number (6538896).

Almost surely, 2106478031 is an apocalyptic number.

106478031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

106478031 is a deficient number, since it is larger than the sum of its proper divisors (50455473).

106478031 is a wasteful number, since it uses less digits than its factorization.

106478031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 106478031 is about 10318.8192638499. The cubic root of 106478031 is about 473.9727102450.

The spelling of 106478031 in words is "one hundred six million, four hundred seventy-eight thousand, thirty-one".

Divisors: 1 3 11 33 139 167 417 501 1529 1837 4587 5511 19321 23213 57963 69639 212531 255343 637593 766029 3226607 9679821 35492677 106478031