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7000138133 = 26153267661
BaseRepresentation
bin1101000010011110…
…11010000110010101
3200001211222212021022
412201033122012111
5103314013410013
63114341130525
7335320122662
oct64117320625
920054885238
107000138133
112a7243942a
1214343b9a45
13877353a91
144a5994a69
152ae845008
hex1a13da195

7000138133 has 4 divisors (see below), whose sum is σ = 7000431948. Its totient is φ = 6999844320.

The previous prime is 7000138129. The next prime is 7000138153. The reversal of 7000138133 is 3318310007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3318310007 = 29114424483.

It can be written as a sum of positive squares in 2 ways, for example, as 341251729 + 6658886404 = 18473^2 + 81602^2 .

It is a cyclic number.

It is not a de Polignac number, because 7000138133 - 22 = 7000138129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7000138153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107678 + ... + 159983.

It is an arithmetic number, because the mean of its divisors is an integer number (1750107987).

Almost surely, 27000138133 is an apocalyptic number.

It is an amenable number.

7000138133 is a deficient number, since it is larger than the sum of its proper divisors (293815).

7000138133 is a wasteful number, since it uses less digits than its factorization.

7000138133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293814.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 7000138133 is about 83666.8281519026. The cubic root of 7000138133 is about 1912.9437654955.

The spelling of 7000138133 in words is "seven billion, one hundred thirty-eight thousand, one hundred thirty-three".

Divisors: 1 26153 267661 7000138133