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12540058 = 231257787
BaseRepresentation
bin101111110101…
…100010011010
3212121002201121
4233311202122
511202240213
61124435454
7211405636
oct57654232
925532647
1012540058
117095593
124248b8a
1327a0a6b
141945dc6
15117a88d
hexbf589a

12540058 has 16 divisors (see below), whose sum is σ = 19517184. Its totient is φ = 6036480.

The previous prime is 12540049. The next prime is 12540109. The reversal of 12540058 is 85004521.

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, 15541 + ... + 16327.

It is an arithmetic number, because the mean of its divisors is an integer number (1219824).

Almost surely, 212540058 is an apocalyptic number.

12540058 is a deficient number, since it is larger than the sum of its proper divisors (6977126).

12540058 is a wasteful number, since it uses less digits than its factorization.

12540058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 12540058 is about 3541.1944312619. The cubic root of 12540058 is about 232.3270876840.

Adding to 12540058 its reverse (85004521), we get a palindrome (97544579).

The spelling of 12540058 in words is "twelve million, five hundred forty thousand, fifty-eight".

Divisors: 1 2 31 62 257 514 787 1574 7967 15934 24397 48794 202259 404518 6270029 12540058