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48799640 = 2351219991
BaseRepresentation
bin1011101000100…
…1111110011000
310101211021112002
42322021332120
544443042030
64501540132
71131535001
oct272117630
9111737462
1048799640
112560098a
1214414648
13a157c36
1466a41a8
15443e245
hex2e89f98

48799640 has 16 divisors (see below), whose sum is σ = 109799280. Its totient is φ = 19519840.

The previous prime is 48799613. The next prime is 48799669. The reversal of 48799640 is 4699784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609956 + ... + 610035.

It is an arithmetic number, because the mean of its divisors is an integer number (6862455).

Almost surely, 248799640 is an apocalyptic number.

48799640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48799640 is an abundant number, since it is smaller than the sum of its proper divisors (60999640).

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

48799640 is a wasteful number, since it uses less digits than its factorization.

48799640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220002 (or 1219998 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 48799640 is about 6985.6739116566. The cubic root of 48799640 is about 365.4311287671.

The spelling of 48799640 in words is "forty-eight million, seven hundred ninety-nine thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1219991 2439982 4879964 6099955 9759928 12199910 24399820 48799640