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100664107490 = 25181457121697
BaseRepresentation
bin101110111000000001…
…1000110000111100010
3100121211110021111110102
41131300003012013202
53122130002414430
6114124445102402
710162356536642
oct1356003060742
9317743244412
10100664107490
113976729a971
1217614257a02
139653292a5b
144c2d334522
1529426bc345
hex17700c61e2

100664107490 has 32 divisors (see below), whose sum is σ = 182596652784. Its totient is φ = 39955230720.

The previous prime is 100664107477. The next prime is 100664107507. The reversal of 100664107490 is 94701466001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 35182880041 + 65481227449 = 187571^2 + 255893^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766322 + ... + 888018.

Almost surely, 2100664107490 is an apocalyptic number.

100664107490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100664107490 is a deficient number, since it is larger than the sum of its proper divisors (81932545294).

100664107490 is a wasteful number, since it uses less digits than its factorization.

100664107490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122342.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 100664107490 in words is "one hundred billion, six hundred sixty-four million, one hundred seven thousand, four hundred ninety".

Divisors: 1 2 5 10 181 362 457 905 914 1810 2285 4570 82717 121697 165434 243394 413585 608485 827170 1216970 22027157 44054314 55615529 110135785 111231058 220271570 278077645 556155290 10066410749 20132821498 50332053745 100664107490