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38001308540 = 22513146158879
BaseRepresentation
bin100011011001000011…
…011111001101111100
310122002101011111020212
4203121003133031330
51110311313333130
625242455531552
72513464535666
oct433103371574
9118071144225
1038001308540
1115130825618
127446689bb8
133777c759b0
141ba6d73536
15ec62d1e95
hex8d90df37c

38001308540 has 24 divisors (see below), whose sum is σ = 85941421440. Its totient is φ = 14031252288.

The previous prime is 38001308537. The next prime is 38001308567. The reversal of 38001308540 is 4580310083.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38001308497 and 38001308506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73079180 + ... + 73079699.

It is an arithmetic number, because the mean of its divisors is an integer number (3580892560).

Almost surely, 238001308540 is an apocalyptic number.

It is an amenable number.

38001308540 is an abundant number, since it is smaller than the sum of its proper divisors (47940112900).

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

38001308540 is a wasteful number, since it uses less digits than its factorization.

38001308540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146158901 (or 146158899 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 38001308540 in words is "thirty-eight billion, one million, three hundred eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 146158879 292317758 584635516 730794395 1461588790 1900065427 2923177580 3800130854 7600261708 9500327135 19000654270 38001308540