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2890720956 = 2231036073853
BaseRepresentation
bin1010110001001100…
…1110011010111100
321110110101211200010
42230103032122330
521410011032311
61154502103220
7131430502614
oct25423163274
97413354603
102890720956
111253811492
1268811ab10
13370b72396
141d5cbba44
1511dba9da6
hexac4ce6bc

2890720956 has 48 divisors (see below), whose sum is σ = 6823491584. Its totient is φ = 952399296.

The previous prime is 2890720901. The next prime is 2890720969. The reversal of 2890720956 is 6590270982.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 748326 + ... + 752178.

Almost surely, 22890720956 is an apocalyptic number.

It is an amenable number.

2890720956 is an abundant number, since it is smaller than the sum of its proper divisors (3932770628).

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

2890720956 is a wasteful number, since it uses less digits than its factorization.

2890720956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570 (or 4568 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 2890720956 is about 53765.4252842847. The cubic root of 2890720956 is about 1424.5205660773.

The spelling of 2890720956 in words is "two billion, eight hundred ninety million, seven hundred twenty thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 12 103 206 309 412 607 618 1214 1236 1821 2428 3642 3853 7284 7706 11559 15412 23118 46236 62521 125042 187563 250084 375126 396859 750252 793718 1190577 1587436 2338771 2381154 4677542 4762308 7016313 9355084 14032626 28065252 240893413 481786826 722680239 963573652 1445360478 2890720956