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70260269 = 174219817
BaseRepresentation
bin1000011000000…
…01011000101101
311220012120222012
410030001120231
5120441312034
610545531005
71512126302
oct414013055
9156176865
1070260269
1136729642
121b643a65
1311730131
14948d0a9
15627ccce
hex430162d

70260269 has 8 divisors (see below), whose sum is σ = 74577528. Its totient is φ = 65963520.

The previous prime is 70260263. The next prime is 70260277. The reversal of 70260269 is 96206207.

It can be written as a sum of positive squares in 4 ways, for example, as 18232900 + 52027369 = 4270^2 + 7213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70260269 is a prime.

It is a super-2 number, since 2×702602692 = 9873010799904722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70260263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249 + ... + 12065.

It is an arithmetic number, because the mean of its divisors is an integer number (9322191).

Almost surely, 270260269 is an apocalyptic number.

It is an amenable number.

70260269 is a deficient number, since it is larger than the sum of its proper divisors (4317259).

70260269 is a wasteful number, since it uses less digits than its factorization.

70260269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10255.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 70260269 is about 8382.1398819156. The cubic root of 70260269 is about 412.6386805213.

The spelling of 70260269 in words is "seventy million, two hundred sixty thousand, two hundred sixty-nine".

Divisors: 1 17 421 7157 9817 166889 4132957 70260269