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20863903224 = 2338373914173
BaseRepresentation
bin10011011011100101…
…011110010111111000
31222212001010002200110
4103123211132113320
5320212124400344
613330145504320
71336012152123
oct233345362770
958761102613
1020863903224
11893714732a
1240633420a0
131c76673288
14101cd273ba
15821a173b9
hex4db95e5f8

20863903224 has 64 divisors (see below), whose sum is σ = 52863350400. Its totient is φ = 6861062016.

The previous prime is 20863903219. The next prime is 20863903237. The reversal of 20863903224 is 42230936802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465002 + ... + 1479174.

It is an arithmetic number, because the mean of its divisors is an integer number (825989850).

Almost surely, 220863903224 is an apocalyptic number.

20863903224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20863903224 is an abundant number, since it is smaller than the sum of its proper divisors (31999447176).

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

20863903224 is a wasteful number, since it uses less digits than its factorization.

20863903224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15004 (or 15000 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 20863903224 in words is "twenty billion, eight hundred sixty-three million, nine hundred three thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 83 166 249 332 498 664 739 996 1478 1992 2217 2956 4434 5912 8868 14173 17736 28346 42519 56692 61337 85038 113384 122674 170076 184011 245348 340152 368022 490696 736044 1176359 1472088 2352718 3529077 4705436 7058154 9410872 10473847 14116308 20947694 28232616 31421541 41895388 62843082 83790776 125686164 251372328 869329301 1738658602 2607987903 3477317204 5215975806 6954634408 10431951612 20863903224