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70995260 = 2257507109
BaseRepresentation
bin1000011101101…
…00110100111100
311221120221012002
410032310310330
5121133322020
611013401432
71521310160
oct416646474
9157527162
1070995260
1137090876
121b939278
131192983b
149600ca0
156375975
hex43b4d3c

70995260 has 24 divisors (see below), whose sum is σ = 170388960. Its totient is φ = 24341184.

The previous prime is 70995257. The next prime is 70995263. The reversal of 70995260 is 6259907.

It is an interprime number because it is at equal distance from previous prime (70995257) and next prime (70995263).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70995263) 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, 253415 + ... + 253694.

It is an arithmetic number, because the mean of its divisors is an integer number (7099540).

Almost surely, 270995260 is an apocalyptic number.

70995260 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70995260 is an abundant number, since it is smaller than the sum of its proper divisors (99393700).

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

70995260 is a wasteful number, since it uses less digits than its factorization.

70995260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507125 (or 507123 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 70995260 is about 8425.8685012288. The cubic root of 70995260 is about 414.0725599597.

The spelling of 70995260 in words is "seventy million, nine hundred ninety-five thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 507109 1014218 2028436 2535545 3549763 5071090 7099526 10142180 14199052 17748815 35497630 70995260