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38754513920 = 21057569241
BaseRepresentation
bin100100000101111100…
…101111010000000000
310201000212110021210102
4210011330233100000
51113332123421140
625445323421532
72541241635023
oct440574572000
9121025407712
1038754513920
1115487a04a01
1276169848a8
133868023455
141c38ddb1ba
15101c4b3e15
hex905f2f400

38754513920 has 44 divisors (see below), whose sum is σ = 92965430244. Its totient is φ = 15501803520.

The previous prime is 38754513911. The next prime is 38754513929. The reversal of 38754513920 is 2931545783.

It is an interprime number because it is at equal distance from previous prime (38754513911) and next prime (38754513929).

It can be written as a sum of positive squares in 2 ways, for example, as 4615300096 + 34139213824 = 67936^2 + 184768^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38754513929) 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, 3779501 + ... + 3789740.

Almost surely, 238754513920 is an apocalyptic number.

It is an amenable number.

38754513920 is an abundant number, since it is smaller than the sum of its proper divisors (54210916324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38754513920 is an equidigital number, since it uses as much as digits as its factorization.

38754513920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569266 (or 7569248 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 38754513920 in words is "thirty-eight billion, seven hundred fifty-four million, five hundred thirteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2560 5120 7569241 15138482 30276964 37846205 60553928 75692410 121107856 151384820 242215712 302769640 484431424 605539280 968862848 1211078560 1937725696 2422157120 3875451392 4844314240 7750902784 9688628480 19377256960 38754513920