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38701490 = 253870149
BaseRepresentation
bin1001001110100…
…0100110110010
32200211020110112
42103220212302
534401421430
63501301322
7646646222
oct223504662
980736415
1038701490
111a934003
1210b64842
1380307b9
1451d6082
1535e7195
hex24e89b2

38701490 has 8 divisors (see below), whose sum is σ = 69662700. Its totient is φ = 15480592.

The previous prime is 38701471. The next prime is 38701493. The reversal of 38701490 is 9410783.

It can be written as a sum of positive squares in 2 ways, for example, as 36929929 + 1771561 = 6077^2 + 1331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is not an unprimeable number, because it can be changed into a prime (38701493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935065 + ... + 1935084.

Almost surely, 238701490 is an apocalyptic number.

38701490 is a deficient number, since it is larger than the sum of its proper divisors (30961210).

38701490 is a wasteful number, since it uses less digits than its factorization.

38701490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870156.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 38701490 is about 6221.0521618131. The cubic root of 38701490 is about 338.2537046919.

The spelling of 38701490 in words is "thirty-eight million, seven hundred one thousand, four hundred ninety".

Divisors: 1 2 5 10 3870149 7740298 19350745 38701490