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67952970 = 2325755033
BaseRepresentation
bin1000000110011…
…10000101001010
311201212100221200
410003032011022
5114343443340
610424245030
71453406421
oct403160512
9151770850
1067952970
11353a3088
121a910776
1311102b77
14904c2b8
155e74330
hex40ce14a

67952970 has 24 divisors (see below), whose sum is σ = 176677956. Its totient is φ = 18120768.

The previous prime is 67952957. The next prime is 67952981. The reversal of 67952970 is 7925976.

It can be written as a sum of positive squares in 2 ways, for example, as 67617729 + 335241 = 8223^2 + 579^2 .

It is a super-2 number, since 2×679529702 = 9235212263641800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377427 + ... + 377606.

Almost surely, 267952970 is an apocalyptic number.

67952970 is an abundant number, since it is smaller than the sum of its proper divisors (108724986).

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

67952970 is a wasteful number, since it uses less digits than its factorization.

67952970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755046 (or 755043 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 67952970 is about 8243.3591453970. The cubic root of 67952970 is about 408.0713903335.

The spelling of 67952970 in words is "sixty-seven million, nine hundred fifty-two thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 755033 1510066 2265099 3775165 4530198 6795297 7550330 11325495 13590594 22650990 33976485 67952970