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100131000030 = 23251112566667
BaseRepresentation
bin101110101000001000…
…1011100111011011110
3100120110022010211111200
41131100101130323132
53120032014000110
6113555522500330
710143224312535
oct1352021347336
9316408124450
10100131000030
1139513380396
12174a58046a6
1395999b8459
144bbc60131c
1529109b46c0
hex175045cede

100131000030 has 24 divisors (see below), whose sum is σ = 260340600312. Its totient is φ = 26701599984.

The previous prime is 100131000019. The next prime is 100131000031. The reversal of 100131000030 is 30000131001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100130999976 and 100131000021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131000031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556283244 + ... + 556283423.

It is an arithmetic number, because the mean of its divisors is an integer number (10847525013).

Almost surely, 2100131000030 is an apocalyptic number.

100131000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100131000030 is an abundant number, since it is smaller than the sum of its proper divisors (160209600282).

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

100131000030 is a wasteful number, since it uses less digits than its factorization.

100131000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112566680 (or 1112566677 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

Adding to 100131000030 its reverse (30000131001), we get a palindrome (130131131031).

The spelling of 100131000030 in words is "one hundred billion, one hundred thirty-one million, thirty", and thus it is an aban number.

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1112566667 2225133334 3337700001 5562833335 6675400002 10013100003 11125666670 16688500005 20026200006 33377000010 50065500015 100131000030