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126640014461 = 19197331102217
BaseRepresentation
bin111010111110001010…
…1010100010001111101
3110002212202112021221222
41311330111110101331
54033324320430321
6134102211003125
712102154235102
oct1657425242175
9402782467858
10126640014461
1149786a94284
12206635994a5
13bc32a4bccc
1461b5156aa9
153462db23ab
hex1d7c55447d

126640014461 has 16 divisors (see below), whose sum is σ = 134388048960. Its totient is φ = 119003955840.

The previous prime is 126640014451. The next prime is 126640014469. The reversal of 126640014461 is 164410046621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-126640014461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126640014469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187825 + ... + 1290041.

It is an arithmetic number, because the mean of its divisors is an integer number (8399253060).

Almost surely, 2126640014461 is an apocalyptic number.

It is an amenable number.

126640014461 is a deficient number, since it is larger than the sum of its proper divisors (7748034499).

126640014461 is a wasteful number, since it uses less digits than its factorization.

126640014461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102764.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 126640014461 in words is "one hundred twenty-six billion, six hundred forty million, fourteen thousand, four hundred sixty-one".

Divisors: 1 19 197 331 3743 6289 65207 102217 1238933 1942123 20136749 33833827 382598231 642842713 6665263919 126640014461