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28733490054680 = 2355147139564261
BaseRepresentation
bin1101000100010000010010…
…11101111100011000011000
310202201220011022210100121112
412202020021131330120120
512231232141423222210
6141035552203355452
76023632445442065
oct642101135743030
9122656138710545
1028733490054680
119178894067704
1232808ab822b88
1313057307a3818
147149cb979c6c
1534c6560c2d05
hex1a220977c618

28733490054680 has 32 divisors (see below), whose sum is σ = 64662913869840. Its totient is φ = 11491162911360.

The previous prime is 28733490054653. The next prime is 28733490054707. The reversal of 28733490054680 is 8645009433782.

It is an interprime number because it is at equal distance from previous prime (28733490054653) and next prime (28733490054707).

It is a super-2 number, since 2×287334900546802 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69576251 + ... + 69988010.

Almost surely, 228733490054680 is an apocalyptic number.

28733490054680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28733490054680 is an abundant number, since it is smaller than the sum of its proper divisors (35929423815160).

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

28733490054680 is a wasteful number, since it uses less digits than its factorization.

28733490054680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139569419 (or 139569415 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 28733490054680 in words is "twenty-eight trillion, seven hundred thirty-three billion, four hundred ninety million, fifty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 5147 10294 20588 25735 41176 51470 102940 205880 139564261 279128522 558257044 697821305 1116514088 1395642610 2791285220 5582570440 718337251367 1436674502734 2873349005468 3591686256835 5746698010936 7183372513670 14366745027340 28733490054680