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38890074 = 2319341141
BaseRepresentation
bin1001010001011…
…0101001011010
32201011211011010
42110112221122
534423440244
63505314350
7651363066
oct224265132
981154133
1038890074
111aa52763
12110359b6
1380985a2
145244aa6
153632eb9
hex2516a5a

38890074 has 16 divisors (see below), whose sum is σ = 81874080. Its totient is φ = 12281040.

The previous prime is 38890069. The next prime is 38890087. The reversal of 38890074 is 47009883.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170457 + ... + 170684.

It is an arithmetic number, because the mean of its divisors is an integer number (5117130).

Almost surely, 238890074 is an apocalyptic number.

38890074 is an abundant number, since it is smaller than the sum of its proper divisors (42984006).

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

38890074 is a wasteful number, since it uses less digits than its factorization.

38890074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341165.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 38890074 is about 6236.1906641795. The cubic root of 38890074 is about 338.8022271203.

The spelling of 38890074 in words is "thirty-eight million, eight hundred ninety thousand, seventy-four".

Divisors: 1 2 3 6 19 38 57 114 341141 682282 1023423 2046846 6481679 12963358 19445037 38890074