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22003220020 = 22517232813711
BaseRepresentation
bin10100011111011111…
…100111111000110100
32002210102221101111211
4110133133213320310
5330030311020040
614035205211204
71406155166335
oct243737477064
962712841454
1022003220020
119371275961
124320a00b04
1320c870b822
1410ca37c28c
1588ba678ea
hex51f7e7e34

22003220020 has 48 divisors (see below), whose sum is σ = 51051990528. Its totient is φ = 7923407360.

The previous prime is 22003219991. The next prime is 22003220053. The reversal of 22003220020 is 2002230022.

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, 1399036 + ... + 1414675.

It is an arithmetic number, because the mean of its divisors is an integer number (1063583136).

Almost surely, 222003220020 is an apocalyptic number.

22003220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003220020 is an abundant number, since it is smaller than the sum of its proper divisors (29048770508).

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

22003220020 is a wasteful number, since it uses less digits than its factorization.

22003220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813760 (or 2813758 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

Adding to 22003220020 its reverse (2002230022), we get a palindrome (24005450042).

The spelling of 22003220020 in words is "twenty-two billion, three million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 170 230 340 391 460 782 1564 1955 3910 7820 2813711 5627422 11254844 14068555 28137110 47833087 56274220 64715353 95666174 129430706 191332348 239165435 258861412 323576765 478330870 647153530 956661740 1100161001 1294307060 2200322002 4400644004 5500805005 11001610010 22003220020