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38130551 = 436114537
BaseRepresentation
bin1001000101110…
…1001101110111
32122202020021122
42101131031313
534230134201
63441134155
7642050534
oct221351567
978666248
1038130551
111a584058
121092a35b
137b90974
1450c7d8b
153532e1b
hex245d377

38130551 has 8 divisors (see below), whose sum is σ = 39659664. Its totient is φ = 36630720.

The previous prime is 38130509. The next prime is 38130553. The reversal of 38130551 is 15503183.

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

It is a cyclic number.

It is not a de Polignac number, because 38130551 - 26 = 38130487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38130551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38130553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4646 + ... + 9891.

It is an arithmetic number, because the mean of its divisors is an integer number (4957458).

Almost surely, 238130551 is an apocalyptic number.

38130551 is a deficient number, since it is larger than the sum of its proper divisors (1529113).

38130551 is a wasteful number, since it uses less digits than its factorization.

38130551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 38130551 is about 6174.9940080943. The cubic root of 38130551 is about 336.5821087295.

The spelling of 38130551 in words is "thirty-eight million, one hundred thirty thousand, five hundred fifty-one".

Divisors: 1 43 61 2623 14537 625091 886757 38130551