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748999668 = 223173671567
BaseRepresentation
bin101100101001001…
…101001111110100
31221012101010101110
4230221031033310
53013220442133
6202153355020
724363251334
oct5451151764
91835333343
10748999668
1135487759a
1218aa08a70
13bc237391
14716910c4
1545b50c63
hex2ca4d3f4

748999668 has 24 divisors (see below), whose sum is σ = 1850470272. Its totient is φ = 234980224.

The previous prime is 748999639. The next prime is 748999697. The reversal of 748999668 is 866999847.

It is an interprime number because it is at equal distance from previous prime (748999639) and next prime (748999697).

It is a super-2 number, since 2×7489996682 = 1122001005328220448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 748999599 and 748999608.

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, 1835580 + ... + 1835987.

It is an arithmetic number, because the mean of its divisors is an integer number (77102928).

Almost surely, 2748999668 is an apocalyptic number.

It is an amenable number.

748999668 is an abundant number, since it is smaller than the sum of its proper divisors (1101470604).

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

748999668 is a wasteful number, since it uses less digits than its factorization.

748999668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671591 (or 3671589 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 66.

The square root of 748999668 is about 27367.8583012994. The cubic root of 748999668 is about 908.1561780557.

The spelling of 748999668 in words is "seven hundred forty-eight million, nine hundred ninety-nine thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 3671567 7343134 11014701 14686268 22029402 44058804 62416639 124833278 187249917 249666556 374499834 748999668