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49975380 = 22355713113
BaseRepresentation
bin1011111010100…
…1000001010100
310111001000100000
42332221001110
5100243203010
64543051300
71144532550
oct276510124
9114030300
1049975380
1126234274
12148a0b30
13a47a140
1468cc860
1545c27c0
hex2fa9054

49975380 has 288 divisors, whose sum is σ = 195197184. Its totient is φ = 10450944.

The previous prime is 49975337. The next prime is 49975391. The reversal of 49975380 is 8357994.

It is a super-2 number, since 2×499753802 = 4995077212288800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442204 + ... + 442316.

It is an arithmetic number, because the mean of its divisors is an integer number (677768).

Almost surely, 249975380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49975380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97598592).

49975380 is an abundant number, since it is smaller than the sum of its proper divisors (145221804).

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

49975380 is a wasteful number, since it uses less digits than its factorization.

49975380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 49975380 is about 7069.3267006130. The cubic root of 49975380 is about 368.3426726996.

The spelling of 49975380 in words is "forty-nine million, nine hundred seventy-five thousand, three hundred eighty".