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31230000411020 = 2251561500020551
BaseRepresentation
bin1110001100111010011010…
…00101001011000110001100
311002120120002102110122122122
413012131031011023012030
513043133020101123040
6150230510352432112
76402202344362345
oct706351505130614
9132516072418578
1031230000411020
119a50629081a64
1236046bbb48638
131456c90204148
1479d77bdc90cc
1539256d6701b5
hex1c674d14b18c

31230000411020 has 12 divisors (see below), whose sum is σ = 65583000863184. Its totient is φ = 12492000164400.

The previous prime is 31230000410927. The next prime is 31230000411079. The reversal of 31230000411020 is 2011400003213.

It is a self number, because there is not a number n which added to its sum of digits gives 31230000411020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780750010256 + ... + 780750010295.

It is an arithmetic number, because the mean of its divisors is an integer number (5465250071932).

Almost surely, 231230000411020 is an apocalyptic number.

It is an amenable number.

31230000411020 is an abundant number, since it is smaller than the sum of its proper divisors (34353000452164).

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

31230000411020 is a wasteful number, since it uses less digits than its factorization.

31230000411020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561500020560 (or 1561500020558 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31230000411020 its reverse (2011400003213), we get a palindrome (33241400414233).

The spelling of 31230000411020 in words is "thirty-one trillion, two hundred thirty billion, four hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 1561500020551 3123000041102 6246000082204 7807500102755 15615000205510 31230000411020