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196212587430 = 23512135391937
BaseRepresentation
bin1011011010111100101…
…1100111101110100110
3200202110101121012011210
42312233023213232212
511203320410244210
6230045552412250
720114221321566
oct2665713475646
9622411535153
10196212587430
1176238988072
123203b247086
131566c771252
1496d50a8da6
155185be2e20
hex2daf2e7ba6

196212587430 has 32 divisors (see below), whose sum is σ = 471298516704. Its totient is φ = 52280211456.

The previous prime is 196212587401. The next prime is 196212587437. The reversal of 196212587430 is 34785212691.

It is a self number, because there is not a number n which added to its sum of digits gives 196212587430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196212587437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2659579 + ... + 2732358.

It is an arithmetic number, because the mean of its divisors is an integer number (14728078647).

It is a 2-persistent number, because it is pandigital, and so is 2⋅196212587430 = 392425174860, but 3⋅196212587430 = 588637762290 is not.

Almost surely, 2196212587430 is an apocalyptic number.

196212587430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196212587430 is an abundant number, since it is smaller than the sum of its proper divisors (275085929274).

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

196212587430 is a wasteful number, since it uses less digits than its factorization.

196212587430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393160.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 196212587430 in words is "one hundred ninety-six billion, two hundred twelve million, five hundred eighty-seven thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1213 2426 3639 6065 7278 12130 18195 36390 5391937 10783874 16175811 26959685 32351622 53919370 80879055 161758110 6540419581 13080839162 19621258743 32702097905 39242517486 65404195810 98106293715 196212587430