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38107938 = 23111913023
BaseRepresentation
bin1001000101011…
…1101100100010
32122201002021010
42101113230202
534223423223
63440441350
7641624601
oct221275442
978632233
1038107938
111a569070
1210919256
137b8359b
1450bda38
15352b393
hex2457b22

38107938 has 32 divisors (see below), whose sum is σ = 83607552. Its totient is φ = 11483600.

The previous prime is 38107919. The next prime is 38107957. The reversal of 38107938 is 83970183.

It is an interprime number because it is at equal distance from previous prime (38107919) and next prime (38107957).

It is a super-2 number, since 2×381079382 = 2904429877223688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38107896 and 38107905.

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, 11095 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (2612736).

Almost surely, 238107938 is an apocalyptic number.

38107938 is an abundant number, since it is smaller than the sum of its proper divisors (45499614).

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

38107938 is a wasteful number, since it uses less digits than its factorization.

38107938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 38107938 is about 6173.1627226244. The cubic root of 38107938 is about 336.5155598503.

The spelling of 38107938 in words is "thirty-eight million, one hundred seven thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 191 382 573 1146 2101 3023 4202 6046 6303 9069 12606 18138 33253 66506 99759 199518 577393 1154786 1732179 3464358 6351323 12702646 19053969 38107938