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381300725 = 5213372857
BaseRepresentation
bin10110101110100…
…010111111110101
3222120111002021002
4112232202333311
51240103110400
6101500333045
712310000631
oct2656427765
9876432232
10381300725
11186263973
12a7844185
1360cc5240
14388d7dc1
152371ced5
hex16ba2ff5

381300725 has 36 divisors (see below), whose sum is σ = 523927404. Its totient is φ = 273646080.

The previous prime is 381300637. The next prime is 381300727. The reversal of 381300725 is 527003183.

It can be written as a sum of positive squares in 18 ways, for example, as 61105489 + 320195236 = 7817^2 + 17894^2 .

It is not a de Polignac number, because 381300725 - 210 = 381299701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381300727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 444497 + ... + 445353.

It is an arithmetic number, because the mean of its divisors is an integer number (14553539).

Almost surely, 2381300725 is an apocalyptic number.

It is an amenable number.

381300725 is a deficient number, since it is larger than the sum of its proper divisors (142626679).

381300725 is a wasteful number, since it uses less digits than its factorization.

381300725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 381300725 is about 19526.9230807109. The cubic root of 381300725 is about 725.1411378020.

The spelling of 381300725 in words is "three hundred eighty-one million, three hundred thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 37 65 185 325 481 857 925 1369 2405 4285 6845 11141 12025 17797 21425 31709 34225 55705 88985 158545 278525 412217 444925 792725 1173233 2061085 5866165 10305425 15252029 29330825 76260145 381300725