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389174567140 = 22529670990633
BaseRepresentation
bin1011010100111001001…
…11001010000011100100
31101012112020121101212001
411222130213022003210
522334012142122030
6454441225335044
740055052145162
oct5523447120344
91335466541761
10389174567140
11140058996477
1263511937484
132a911934a78
1414b9c574232
15a1cb33ccca
hex5a9c9ca0e4

389174567140 has 24 divisors (see below), whose sum is σ = 845448198840. Its totient is φ = 150301901568.

The previous prime is 389174567129. The next prime is 389174567153. The reversal of 389174567140 is 41765471983.

It can be written as a sum of positive squares in 4 ways, for example, as 31800162276 + 357374404864 = 178326^2 + 597808^2 .

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, 335494737 + ... + 335495896.

It is an arithmetic number, because the mean of its divisors is an integer number (35227008285).

Almost surely, 2389174567140 is an apocalyptic number.

It is an amenable number.

389174567140 is an abundant number, since it is smaller than the sum of its proper divisors (456273631700).

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

389174567140 is a wasteful number, since it uses less digits than its factorization.

389174567140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670990671 (or 670990669 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 389174567140 in words is "three hundred eighty-nine billion, one hundred seventy-four million, five hundred sixty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 670990633 1341981266 2683962532 3354953165 6709906330 13419812660 19458728357 38917456714 77834913428 97293641785 194587283570 389174567140