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1368628448 = 25113888149
BaseRepresentation
bin101000110010011…
…1001110011100000
310112101022112021112
41101210321303200
510300332102243
6343450242452
745626102255
oct12144716340
93471275245
101368628448
116426118a0
12322426428
1318a716425
14cdaa742c
1580249818
hex51939ce0

1368628448 has 24 divisors (see below), whose sum is σ = 2939441400. Its totient is φ = 622103680.

The previous prime is 1368628441. The next prime is 1368628489. The reversal of 1368628448 is 8448268631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1368628396 and 1368628405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368628441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943723 + ... + 1944426.

It is an arithmetic number, because the mean of its divisors is an integer number (122476725).

Almost surely, 21368628448 is an apocalyptic number.

It is an amenable number.

1368628448 is an abundant number, since it is smaller than the sum of its proper divisors (1570812952).

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

1368628448 is a wasteful number, since it uses less digits than its factorization.

1368628448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888170 (or 3888162 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 1368628448 is about 36994.9786863028. The cubic root of 1368628448 is about 1110.2697848146.

The spelling of 1368628448 in words is "one billion, three hundred sixty-eight million, six hundred twenty-eight thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 3888149 7776298 15552596 31105192 42769639 62210384 85539278 124420768 171078556 342157112 684314224 1368628448