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20010201312 = 253208439597
BaseRepresentation
bin10010101000101100…
…110111000011100000
31220122112201112211010
4102220230313003200
5311440102420222
613105332020520
71305604622223
oct225054670340
956575645733
1020010201312
118539267462
123a65461740
131b6b83a00a
14d7b7bd5ba
157c1ad380c
hex4a8b370e0

20010201312 has 24 divisors (see below), whose sum is σ = 52526778696. Its totient is φ = 6670067072.

The previous prime is 20010201311. The next prime is 20010201313. The reversal of 20010201312 is 21310201002.

It is an interprime number because it is at equal distance from previous prime (20010201311) and next prime (20010201313).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010201311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104219703 + ... + 104219894.

It is an arithmetic number, because the mean of its divisors is an integer number (2188615779).

Almost surely, 220010201312 is an apocalyptic number.

It is an amenable number.

20010201312 is an abundant number, since it is smaller than the sum of its proper divisors (32516577384).

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

20010201312 is a wasteful number, since it uses less digits than its factorization.

20010201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208439610 (or 208439602 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20010201312 its reverse (21310201002), we get a palindrome (41320402314).

The spelling of 20010201312 in words is "twenty billion, ten million, two hundred one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 208439597 416879194 625318791 833758388 1250637582 1667516776 2501275164 3335033552 5002550328 6670067104 10005100656 20010201312