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12774478053 = 3611632411777
BaseRepresentation
bin10111110010110101…
…10001000011100101
31012222021102201111210
423321122301003211
5202130231244203
65511333222033
7631364162151
oct137132610345
935867381453
1012774478053
115465950487
122586191919
13128774ca6c
14892822061
154eb755803
hex2f96b10e5

12774478053 has 32 divisors (see below), whose sum is σ = 17500185472. Its totient is φ = 8286105600.

The previous prime is 12774477983. The next prime is 12774478091. The reversal of 12774478053 is 35087447721.

It is not a de Polignac number, because 12774478053 - 228 = 12506042597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12774477993 and 12774478011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12774478153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7187901 + ... + 7189677.

It is an arithmetic number, because the mean of its divisors is an integer number (546880796).

Almost surely, 212774478053 is an apocalyptic number.

It is an amenable number.

12774478053 is a deficient number, since it is larger than the sum of its proper divisors (4725707419).

12774478053 is a wasteful number, since it uses less digits than its factorization.

12774478053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 12774478053 in words is "twelve billion, seven hundred seventy-four million, four hundred seventy-eight thousand, fifty-three".

Divisors: 1 3 61 163 183 241 489 723 1777 5331 9943 14701 29829 39283 44103 108397 117849 289651 325191 428257 868953 1284771 2396263 7188789 17668711 26123677 53006133 69805891 78371031 209417673 4258159351 12774478053