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212890429143 = 38721532
BaseRepresentation
bin1100011001000101000…
…0100010011011010111
3202100111200220100000000
43012101100202123113
511441444422213033
6241444524422343
721244423535040
oct3062120423327
9670450810000
10212890429143
1182317108427
12353146a79b3
13170c9aa8c42
14a4380878c7
15580ee80a13
hex31914226d7

212890429143 has 54 divisors (see below), whose sum is σ = 365106059864. Its totient is φ = 121595170464.

The previous prime is 212890429117. The next prime is 212890429211. The reversal of 212890429143 is 341924098212.

212890429143 is a `hidden beast` number, since 2 + 1 + 2 + 89 + 0 + 429 + 143 = 666.

It is not a de Polignac number, because 212890429143 - 29 = 212890428631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212890429043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 98879755 + ... + 98881907.

Almost surely, 2212890429143 is an apocalyptic number.

212890429143 is a deficient number, since it is larger than the sum of its proper divisors (152215630721).

212890429143 is an frugal number, since it uses more digits than its factorization.

212890429143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 212890429143 in words is "two hundred twelve billion, eight hundred ninety million, four hundred twenty-nine thousand, one hundred forty-three".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 729 1701 2153 2187 5103 6459 6561 15071 15309 19377 45213 45927 58131 135639 174393 406917 523179 1220751 1569537 3662253 4635409 4708611 10986759 13906227 14125833 32447863 32960277 41718681 97343589 98880831 125156043 292030767 375468129 876092301 1126404387 2628276903 3379213161 7884830709 10137639483 23654492127 30412918449 70963476381 212890429143