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106405130312 = 23131031992363
BaseRepresentation
bin110001100011000111…
…1010111000001001000
3101011122120000200020022
41203012033113001020
53220404203132222
6120514251120012
710454550453545
oct1430617270110
9334576020208
10106405130312
1141142a16328
1218756a43008
13a0597c4c90
1452159abbcc
152b7b6eb042
hex18c63d7048

106405130312 has 32 divisors (see below), whose sum is σ = 215065126080. Its totient is φ = 49062377280.

The previous prime is 106405130303. The next prime is 106405130327. The reversal of 106405130312 is 213031504601.

It is a super-2 number, since 2×1064051303122 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388958 + ... + 603405.

It is an arithmetic number, because the mean of its divisors is an integer number (6720785190).

Almost surely, 2106405130312 is an apocalyptic number.

It is an amenable number.

106405130312 is an abundant number, since it is smaller than the sum of its proper divisors (108659995768).

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

106405130312 is a wasteful number, since it uses less digits than its factorization.

106405130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993413 (or 993409 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 106405130312 its reverse (213031504601), we get a palindrome (319436634913).

The spelling of 106405130312 in words is "one hundred six billion, four hundred five million, one hundred thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 1031 2062 4124 8248 13403 26806 53612 107224 992363 1984726 3969452 7938904 12900719 25801438 51602876 103205752 1023126253 2046252506 4092505012 8185010024 13300641289 26601282578 53202565156 106405130312