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139470384 = 243127137167
BaseRepresentation
bin10000101000000…
…10011000110000
3100201102211101210
420110002120300
5241201023014
621501200120
73312323124
oct1024023060
9321384353
10139470384
1171800189
123a860040
1322b83271
1414747584
15c39e859
hex8502630

139470384 has 80 divisors (see below), whose sum is σ = 367976448. Its totient is φ = 45513216.

The previous prime is 139470379. The next prime is 139470403. The reversal of 139470384 is 483074931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835069 + ... + 835235.

Almost surely, 2139470384 is an apocalyptic number.

It is an amenable number.

139470384 is an abundant number, since it is smaller than the sum of its proper divisors (228506064).

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

139470384 is a wasteful number, since it uses less digits than its factorization.

139470384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 139470384 is about 11809.7579992140. The cubic root of 139470384 is about 518.5938142275.

The spelling of 139470384 in words is "one hundred thirty-nine million, four hundred seventy thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 127 137 167 254 274 334 381 411 501 508 548 668 762 822 1002 1016 1096 1336 1524 1644 2004 2032 2192 2672 3048 3288 4008 6096 6576 8016 17399 21209 22879 34798 42418 45758 52197 63627 68637 69596 84836 91516 104394 127254 137274 139192 169672 183032 208788 254508 274548 278384 339344 366064 417576 509016 549096 835152 1018032 1098192 2905633 5811266 8716899 11622532 17433798 23245064 34867596 46490128 69735192 139470384