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127904311452 = 22388671202063
BaseRepresentation
bin111011100011110110…
…0001110100010011100
3110020010212112020101110
41313013230032202130
54043422000431302
6134431453142020
712145405465131
oct1670754164234
9406125466343
10127904311452
114a275716325
1220956a8a910
13c0a4966238
146295022588
1534d8d9db6c
hex1dc7b0e89c

127904311452 has 24 divisors (see below), whose sum is σ = 298477299456. Its totient is φ = 42629926768.

The previous prime is 127904311441. The next prime is 127904311489. The reversal of 127904311452 is 254113409721.

It is a self number, because there is not a number n which added to its sum of digits gives 127904311452.

It is a congruent number.

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, 494628 + ... + 707435.

It is an arithmetic number, because the mean of its divisors is an integer number (12436554144).

Almost surely, 2127904311452 is an apocalyptic number.

127904311452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127904311452 is an abundant number, since it is smaller than the sum of its proper divisors (170572988004).

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

127904311452 is a wasteful number, since it uses less digits than its factorization.

127904311452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210937 (or 1210935 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 127904311452 in words is "one hundred twenty-seven billion, nine hundred four million, three hundred eleven thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 8867 17734 26601 35468 53202 106404 1202063 2404126 3606189 4808252 7212378 14424756 10658692621 21317385242 31976077863 42634770484 63952155726 127904311452