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139027916 = 222373127163
BaseRepresentation
bin10000100100101…
…10010111001100
3100200121100110002
420102112113030
5241042343131
621443503432
73305501126
oct1022262714
9320540402
10139027916
1171528805
123a687b78
1322a59a51
1414670216
15c3136cb
hex84965cc

139027916 has 48 divisors (see below), whose sum is σ = 260972544. Its totient is φ = 64665216.

The previous prime is 139027897. The next prime is 139027949. The reversal of 139027916 is 619720931.

It is a happy number.

It is a super-3 number, since 3×1390279163 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 139027916.

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, 852851 + ... + 853013.

It is an arithmetic number, because the mean of its divisors is an integer number (5436928).

Almost surely, 2139027916 is an apocalyptic number.

It is an amenable number.

139027916 is a deficient number, since it is larger than the sum of its proper divisors (121944628).

139027916 is a wasteful number, since it uses less digits than its factorization.

139027916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 139027916 is about 11791.0099652235. The cubic root of 139027916 is about 518.0448225253.

The spelling of 139027916 in words is "one hundred thirty-nine million, twenty-seven thousand, nine hundred sixteen".

Divisors: 1 2 4 23 46 73 92 127 146 163 254 292 326 508 652 1679 2921 3358 3749 5842 6716 7498 9271 11684 11899 14996 18542 20701 23798 37084 41402 47596 82804 213233 273677 426466 476123 547354 852932 952246 1094708 1511173 1904492 3022346 6044692 34756979 69513958 139027916