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38745070 = 2571342577
BaseRepresentation
bin1001001111001…
…1001111101110
32200220110020121
42103303033232
534404320240
63502235154
7650220250
oct223631756
980813217
1038745070
111a963821
1210b85aba
1380475a0
145207cd0
15360504a
hex24f33ee

38745070 has 32 divisors (see below), whose sum is σ = 85837248. Its totient is φ = 12261888.

The previous prime is 38745059. The next prime is 38745089. The reversal of 38745070 is 7054783.

It is an alternating number because its digits alternate between odd and even.

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, 20379 + ... + 22198.

It is an arithmetic number, because the mean of its divisors is an integer number (2682414).

Almost surely, 238745070 is an apocalyptic number.

38745070 is an abundant number, since it is smaller than the sum of its proper divisors (47092178).

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

38745070 is a wasteful number, since it uses less digits than its factorization.

38745070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42604.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 38745070 is about 6224.5537992695. The cubic root of 38745070 is about 338.3806211389.

The spelling of 38745070 in words is "thirty-eight million, seven hundred forty-five thousand, seventy".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 42577 85154 212885 298039 425770 553501 596078 1107002 1490195 2767505 2980390 3874507 5535010 7749014 19372535 38745070