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1268020088 = 23158502511
BaseRepresentation
bin100101110010100…
…0111001101111000
310021101000002112222
41023211013031320
510044103120323
6325454023212
743264664366
oct11345071570
93241002488
101268020088
115a0845295
122b47a7b08
1317291ba5a
14c0598636
15764c49c8
hex4b947378

1268020088 has 8 divisors (see below), whose sum is σ = 2377537680. Its totient is φ = 634010040.

The previous prime is 1268020057. The next prime is 1268020129. The reversal of 1268020088 is 8800208621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79251248 + ... + 79251263.

It is an arithmetic number, because the mean of its divisors is an integer number (297192210).

Almost surely, 21268020088 is an apocalyptic number.

It is an amenable number.

1268020088 is a deficient number, since it is larger than the sum of its proper divisors (1109517592).

1268020088 is a wasteful number, since it uses less digits than its factorization.

1268020088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158502517 (or 158502513 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1268020088 is about 35609.2696920338. The cubic root of 1268020088 is about 1082.3690815187.

It can be divided in two parts, 12680 and 20088, that added together give a 15-th power (32768 = 215).

The spelling of 1268020088 in words is "one billion, two hundred sixty-eight million, twenty thousand, eighty-eight".

Divisors: 1 2 4 8 158502511 317005022 634010044 1268020088