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48135880 = 2351392569
BaseRepresentation
bin1011011110011…
…1111011001000
310100120120000101
42313213323020
544310322010
64435415144
71123101562
oct267477310
9110516011
1048135880
1125198221
12141544b4
139c84a90
146570332
15435c73a
hex2de7ec8

48135880 has 32 divisors (see below), whose sum is σ = 116638200. Its totient is φ = 17773056.

The previous prime is 48135869. The next prime is 48135881. The reversal of 48135880 is 8853184.

It can be written as a sum of positive squares in 4 ways, for example, as 17288964 + 30846916 = 4158^2 + 5554^2 .

It is not an unprimeable number, because it can be changed into a prime (48135881) 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, 45765 + ... + 46804.

Almost surely, 248135880 is an apocalyptic number.

48135880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48135880 is an abundant number, since it is smaller than the sum of its proper divisors (68502320).

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

48135880 is a wasteful number, since it uses less digits than its factorization.

48135880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92593 (or 92589 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 48135880 is about 6938.0025944071. The cubic root of 48135880 is about 363.7667265172.

The spelling of 48135880 in words is "forty-eight million, one hundred thirty-five thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 92569 185138 370276 462845 740552 925690 1203397 1851380 2406794 3702760 4813588 6016985 9627176 12033970 24067940 48135880