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3123023287 is a prime number
BaseRepresentation
bin1011101000100101…
…1000110110110111
322001122112000120011
42322021120312313
522343443221122
61233521121051
7140251155106
oct27211306667
98048460504
103123023287
11136295768a
12731a89187
133aa029597
14218aac03d
15134295377
hexba258db7

3123023287 has 2 divisors, whose sum is σ = 3123023288. Its totient is φ = 3123023286.

The previous prime is 3123023279. The next prime is 3123023303. The reversal of 3123023287 is 7823203213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3123023287 - 23 = 3123023279 is a prime.

It is a super-2 number, since 2×31230232872 = 19506548902288568738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123023207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561511643 + 1561511644.

It is an arithmetic number, because the mean of its divisors is an integer number (1561511644).

Almost surely, 23123023287 is an apocalyptic number.

3123023287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123023287 is an equidigital number, since it uses as much as digits as its factorization.

3123023287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 3123023287 is about 55884.0163821463. The cubic root of 3123023287 is about 1461.7005404130.

The spelling of 3123023287 in words is "three billion, one hundred twenty-three million, twenty-three thousand, two hundred eighty-seven".