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34885978 = 253397829
BaseRepresentation
bin1000010100010…
…1000101011010
32102122101120021
42011011011122
532412322403
63243421054
7602345251
oct205050532
972571507
1034885978
1118768396
12b82478a
1372c5bba
1448c1798
1530e18bd
hex214515a

34885978 has 16 divisors (see below), whose sum is σ = 53515080. Its totient is φ = 17050176.

The previous prime is 34885967. The next prime is 34885987. The reversal of 34885978 is 87958843.

It can be written as a sum of positive squares in 4 ways, for example, as 34070569 + 815409 = 5837^2 + 903^2 .

It is a super-2 number, since 2×348859782 = 2434062922032968, which contains 22 as substring.

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, 41668 + ... + 42496.

Almost surely, 234885978 is an apocalyptic number.

34885978 is a deficient number, since it is larger than the sum of its proper divisors (18629102).

34885978 is a wasteful number, since it uses less digits than its factorization.

34885978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281.

The product of its digits is 1935360, while the sum is 52.

The square root of 34885978 is about 5906.4353039714. The cubic root of 34885978 is about 326.7510317062.

The spelling of 34885978 in words is "thirty-four million, eight hundred eighty-five thousand, nine hundred seventy-eight".

Divisors: 1 2 53 106 397 794 829 1658 21041 42082 43937 87874 329113 658226 17442989 34885978