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7149220980 = 22351110832153
BaseRepresentation
bin1101010100010000…
…00111010001110100
3200110020112001111020
412222020013101310
5104120200032410
63141224341140
7342110242566
oct65210072164
920406461436
107149220980
1130396045a0
1214763147b0
1389c1c1395
144bb6c1336
152bc992a70
hex1aa207474

7149220980 has 48 divisors (see below), whose sum is σ = 21837622464. Its totient is φ = 1733144320.

The previous prime is 7149220957. The next prime is 7149221011. The reversal of 7149220980 is 890229417.

It is a super-2 number, since 2×71492209802 (a number of 21 digits) contains 22 as substring.

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, 5415417 + ... + 5416736.

It is an arithmetic number, because the mean of its divisors is an integer number (454950468).

Almost surely, 27149220980 is an apocalyptic number.

It is an amenable number.

7149220980 is an abundant number, since it is smaller than the sum of its proper divisors (14688401484).

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

7149220980 is a wasteful number, since it uses less digits than its factorization.

7149220980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832176 (or 10832174 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 7149220980 is about 84553.0660591324. The cubic root of 7149220980 is about 1926.4285549350.

The spelling of 7149220980 in words is "seven billion, one hundred forty-nine million, two hundred twenty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 10832153 21664306 32496459 43328612 54160765 64992918 108321530 119153683 129985836 162482295 216643060 238307366 324964590 357461049 476614732 595768415 649929180 714922098 1191536830 1429844196 1787305245 2383073660 3574610490 7149220980