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38144942680 = 2351325642743
BaseRepresentation
bin100011100001100111…
…011010001001011000
310122110101102212020211
4203201213122021120
51111110101131210
625305030300504
72520160443265
oct434147321130
9118411385224
1038144942680
11151a490a019
1274867b7734
13379b956200
141bbc08226c
15ed3c0538a
hex8e19da258

38144942680 has 48 divisors (see below), whose sum is σ = 92935993680. Its totient is φ = 14084284032.

The previous prime is 38144942657. The next prime is 38144942707. The reversal of 38144942680 is 8624944183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2814612 + ... + 2828131.

It is an arithmetic number, because the mean of its divisors is an integer number (1936166535).

Almost surely, 238144942680 is an apocalyptic number.

It is an amenable number.

38144942680 is an abundant number, since it is smaller than the sum of its proper divisors (54791051000).

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

38144942680 is a wasteful number, since it uses less digits than its factorization.

38144942680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5642780 (or 5642763 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

It can be divided in two parts, 3814 and 4942680, that added together give a palindrome (4946494).

The spelling of 38144942680 in words is "thirty-eight billion, one hundred forty-four million, nine hundred forty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 169 260 338 520 676 845 1352 1690 3380 6760 5642743 11285486 22570972 28213715 45141944 56427430 73355659 112854860 146711318 225709720 293422636 366778295 586845272 733556590 953623567 1467113180 1907247134 2934226360 3814494268 4768117835 7628988536 9536235670 19072471340 38144942680