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12020230434 = 232925168489
BaseRepresentation
bin10110011000111011…
…00010100100100010
31011000201011222021210
423030131202210202
5144104134333214
65304431130550
7603605162412
oct131435424442
934021158253
1012020230434
11510911a043
1223b5673a56
1311973c8ab4
148205a6642
154a5419b59
hex2cc762922

12020230434 has 16 divisors (see below), whose sum is σ = 24041633760. Its totient is φ = 4006548000.

The previous prime is 12020230423. The next prime is 12020230451. The reversal of 12020230434 is 43403202021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020230434.

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, 141262 + ... + 209750.

It is an arithmetic number, because the mean of its divisors is an integer number (1502602110).

Almost surely, 212020230434 is an apocalyptic number.

12020230434 is an abundant number, since it is smaller than the sum of its proper divisors (12021403326).

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

12020230434 is a wasteful number, since it uses less digits than its factorization.

12020230434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97745.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12020230434 its reverse (43403202021), we get a palindrome (55423432455).

The spelling of 12020230434 in words is "twelve billion, twenty million, two hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 3 6 29251 58502 68489 87753 136978 175506 205467 410934 2003371739 4006743478 6010115217 12020230434