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100231312030 = 2531323326813
BaseRepresentation
bin101110101011001000…
…0000111001010011110
3100120201021220012200221
41131112100013022132
53120233203441110
6114013504511554
710145553044413
oct1352620071236
9316637805627
10100231312030
1139564a65273
121751331b5ba
1395b470ac75
144bcba7410a
1529196cb7da
hex175640729e

100231312030 has 16 divisors (see below), whose sum is σ = 186236244864. Its totient is φ = 38799217440.

The previous prime is 100231312021. The next prime is 100231312033. The reversal of 100231312030 is 30213132001.

It is a super-2 number, since 2×1002313120302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100231311995 and 100231312013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231312033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161663097 + ... + 161663716.

It is an arithmetic number, because the mean of its divisors is an integer number (11639765304).

Almost surely, 2100231312030 is an apocalyptic number.

100231312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100231312030 is a deficient number, since it is larger than the sum of its proper divisors (86004932834).

100231312030 is a wasteful number, since it uses less digits than its factorization.

100231312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323326851.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100231312030 its reverse (30213132001), we get a palindrome (130444444031).

The spelling of 100231312030 in words is "one hundred billion, two hundred thirty-one million, three hundred twelve thousand, thirty".

Divisors: 1 2 5 10 31 62 155 310 323326813 646653626 1616634065 3233268130 10023131203 20046262406 50115656015 100231312030