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382750129 = 4182911261
BaseRepresentation
bin10110110100000…
…100110110110001
3222200012201110201
4112310010312301
51240441001004
6101551355201
712325215406
oct2664046661
9880181421
10382750129
11187063923
12a8222b01
13613b1b88
1438b942ad
15239076a4
hex16d04db1

382750129 has 8 divisors (see below), whose sum is σ = 392593320. Its totient is φ = 372931200.

The previous prime is 382750127. The next prime is 382750133. The reversal of 382750129 is 921057283.

It can be written as a sum of positive squares in 4 ways, for example, as 86118400 + 296631729 = 9280^2 + 17223^2 .

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 382750129 - 21 = 382750127 is a prime.

It is a super-2 number, since 2×3827501292 = 292995322499033282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382750127) 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, 28359 + ... + 39619.

It is an arithmetic number, because the mean of its divisors is an integer number (49074165).

Almost surely, 2382750129 is an apocalyptic number.

It is an amenable number.

382750129 is a deficient number, since it is larger than the sum of its proper divisors (9843191).

382750129 is a wasteful number, since it uses less digits than its factorization.

382750129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 382750129 is about 19564.0008433858. Note that the first 3 decimals coincide. The cubic root of 382750129 is about 726.0587805645.

It can be divided in two parts, 3827 and 50129, that added together give a triangular number (53956 = T328).

The spelling of 382750129 in words is "three hundred eighty-two million, seven hundred fifty thousand, one hundred twenty-nine".

Divisors: 1 41 829 11261 33989 461701 9335369 382750129