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231013003020 = 22353850216717
BaseRepresentation
bin1101011100100101110…
…0101010111100001100
3211002021200201110202220
43113021130222330030
512241103312044040
6254043110215340
722455501061302
oct3271134527414
9732250643686
10231013003020
1189a768aa408
1238931954550
1318a27524b37
14b276ca0272
156020e9c2d0
hex35c972af0c

231013003020 has 24 divisors (see below), whose sum is σ = 646836408624. Its totient is φ = 61603467456.

The previous prime is 231013003003. The next prime is 231013003037. The reversal of 231013003020 is 20300310132.

It is an interprime number because it is at equal distance from previous prime (231013003003) and next prime (231013003037).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925108299 + ... + 1925108418.

It is an arithmetic number, because the mean of its divisors is an integer number (26951517026).

Almost surely, 2231013003020 is an apocalyptic number.

231013003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231013003020 is an abundant number, since it is smaller than the sum of its proper divisors (415823405604).

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

231013003020 is a wasteful number, since it uses less digits than its factorization.

231013003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850216729 (or 3850216727 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 231013003020 its reverse (20300310132), we get a palindrome (251313313152).

The spelling of 231013003020 in words is "two hundred thirty-one billion, thirteen million, three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3850216717 7700433434 11550650151 15400866868 19251083585 23101300302 38502167170 46202600604 57753250755 77004334340 115506501510 231013003020