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1377455948 = 221167716581
BaseRepresentation
bin101001000011010…
…0100111101001100
310112222221000022222
41102012210331030
510310112042243
6344403354512
746064116361
oct12206447514
93488830288
101377455948
116475a1050
12325382a38
1318c4b73bb
14d0d24468
1580de0168
hex521a4f4c

1377455948 has 48 divisors (see below), whose sum is σ = 2706939648. Its totient is φ = 607992000.

The previous prime is 1377455909. The next prime is 1377456011. The reversal of 1377455948 is 8495547731.

It is a self number, because there is not a number n which added to its sum of digits gives 1377455948.

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, 206018 + ... + 212598.

It is an arithmetic number, because the mean of its divisors is an integer number (56394576).

Almost surely, 21377455948 is an apocalyptic number.

It is an amenable number.

1377455948 is a deficient number, since it is larger than the sum of its proper divisors (1329483700).

1377455948 is a wasteful number, since it uses less digits than its factorization.

1377455948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734 (or 6732 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 53.

The square root of 1377455948 is about 37114.0936572618. The cubic root of 1377455948 is about 1112.6517096141.

The spelling of 1377455948 in words is "one billion, three hundred seventy-seven million, four hundred fifty-five thousand, nine hundred forty-eight".

Divisors: 1 2 4 11 22 44 67 71 134 142 268 284 737 781 1474 1562 2948 3124 4757 6581 9514 13162 19028 26324 52327 72391 104654 144782 209308 289564 440927 467251 881854 934502 1763708 1869004 4850197 5139761 9700394 10279522 19400788 20559044 31305817 62611634 125223268 344363987 688727974 1377455948