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2989973275440 = 243512458221981
BaseRepresentation
bin101011100000101000010…
…010111000001100110000
3101120211122101012220010020
4223200220102320030300
5342441431124303230
610205324052003440
7426006216335004
oct53405022701460
911524571186106
102989973275440
11a53049a69158
12403588000580
13188c514465a8
14a4a033b8704
1552b99357810
hex2b8284b8330

2989973275440 has 40 divisors (see below), whose sum is σ = 9268917154608. Its totient is φ = 797326206720.

The previous prime is 2989973275391. The next prime is 2989973275447. The reversal of 2989973275440 is 445723799892.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2989973275447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6229110751 + ... + 6229111230.

Almost surely, 22989973275440 is an apocalyptic number.

2989973275440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2989973275440 is an abundant number, since it is smaller than the sum of its proper divisors (6278943879168).

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

2989973275440 is a wasteful number, since it uses less digits than its factorization.

2989973275440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12458221997 (or 12458221991 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 69.

The spelling of 2989973275440 in words is "two trillion, nine hundred eighty-nine billion, nine hundred seventy-three million, two hundred seventy-five thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 12458221981 24916443962 37374665943 49832887924 62291109905 74749331886 99665775848 124582219810 149498663772 186873329715 199331551696 249164439620 298997327544 373746659430 498328879240 597994655088 747493318860 996657758480 1494986637720 2989973275440