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679542748 = 22169885687
BaseRepresentation
bin101000100000001…
…111111111011100
31202100200100101221
4220200033333130
52342430331443
6151232543124
722561006123
oct5040177734
91670610357
10679542748
11319647585
1216b6b1aa4
13aaa28b01
1466370aba
153e9d0eed
hex2880ffdc

679542748 has 6 divisors (see below), whose sum is σ = 1189199816. Its totient is φ = 339771372.

The previous prime is 679542739. The next prime is 679542757. The reversal of 679542748 is 847245976.

It is an interprime number because it is at equal distance from previous prime (679542739) and next prime (679542757).

It is a junction number, because it is equal to n+sod(n) for n = 679542695 and 679542704.

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, 84942840 + ... + 84942847.

Almost surely, 2679542748 is an apocalyptic number.

It is an amenable number.

679542748 is a deficient number, since it is larger than the sum of its proper divisors (509657068).

679542748 is a wasteful number, since it uses less digits than its factorization.

679542748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169885691 (or 169885689 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The square root of 679542748 is about 26068.0407395723. The cubic root of 679542748 is about 879.1687863963.

The spelling of 679542748 in words is "six hundred seventy-nine million, five hundred forty-two thousand, seven hundred forty-eight".

Divisors: 1 2 4 169885687 339771374 679542748