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38923230 = 2355092549
BaseRepresentation
bin1001010001111…
…0101111011110
32201020111122010
42110132233132
534431020410
63510132050
7651561543
oct224365736
981214563
1038923230
111aa75665
1211051026
1380aa6c8
145252bca
15363cc20
hex251ebde

38923230 has 32 divisors (see below), whose sum is σ = 93636000. Its totient is φ = 10355072.

The previous prime is 38923219. The next prime is 38923231. The reversal of 38923230 is 3232983.

It is a Harshad number since it is a multiple of its sum of digits (30).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38923231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13996 + ... + 16544.

It is an arithmetic number, because the mean of its divisors is an integer number (2926125).

Almost surely, 238923230 is an apocalyptic number.

38923230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38923230 is an abundant number, since it is smaller than the sum of its proper divisors (54712770).

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

38923230 is a wasteful number, since it uses less digits than its factorization.

38923230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 38923230 is about 6238.8484514372. The cubic root of 38923230 is about 338.8984824939.

The spelling of 38923230 in words is "thirty-eight million, nine hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 509 1018 1527 2545 2549 3054 5090 5098 7635 7647 12745 15270 15294 25490 38235 76470 1297441 2594882 3892323 6487205 7784646 12974410 19461615 38923230