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38045830 = 25171631373
BaseRepresentation
bin1001000100100…
…0100010000110
32122120221001211
42101020202012
534214431310
63435242034
7641245534
oct221104206
978527054
1038045830
111a526439
12108a931a
137b61234
1450a5154
153517c8a
hex2448886

38045830 has 32 divisors (see below), whose sum is σ = 73008864. Its totient is φ = 14224896.

The previous prime is 38045803. The next prime is 38045837. The reversal of 38045830 is 3854083.

It is a junction number, because it is equal to n+sod(n) for n = 38045792 and 38045801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38045837) 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, 27024 + ... + 28396.

It is an arithmetic number, because the mean of its divisors is an integer number (2281527).

Almost surely, 238045830 is an apocalyptic number.

38045830 is a deficient number, since it is larger than the sum of its proper divisors (34963034).

38045830 is a wasteful number, since it uses less digits than its factorization.

38045830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 38045830 is about 6168.1301866935. The cubic root of 38045830 is about 336.3326436902.

The spelling of 38045830 in words is "thirty-eight million, forty-five thousand, eight hundred thirty".

Divisors: 1 2 5 10 17 34 85 163 170 326 815 1373 1630 2746 2771 5542 6865 13730 13855 23341 27710 46682 116705 223799 233410 447598 1118995 2237990 3804583 7609166 19022915 38045830