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123970201 = 499924799
BaseRepresentation
bin1110110001110…
…10001010011001
322122021100010221
413120322022121
5223214021301
620145040041
73033505105
oct730721231
9278240127
10123970201
1163a83713
1235626021
131c8b7064
1412670905
15ad3bda1
hex763a299

123970201 has 4 divisors (see below), whose sum is σ = 124000000. Its totient is φ = 123940404.

The previous prime is 123970129. The next prime is 123970229. The reversal of 123970201 is 102079321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123970201 - 29 = 123969689 is a prime.

It is a super-2 number, since 2×1239702012 = 30737221471960802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123970501) 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, 7401 + ... + 17398.

It is an arithmetic number, because the mean of its divisors is an integer number (31000000).

Almost surely, 2123970201 is an apocalyptic number.

It is an amenable number.

123970201 is a deficient number, since it is larger than the sum of its proper divisors (29799).

123970201 is an equidigital number, since it uses as much as digits as its factorization.

123970201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29798.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 123970201 is about 11134.1906306655. The cubic root of 123970201 is about 498.6231466968.

The spelling of 123970201 in words is "one hundred twenty-three million, nine hundred seventy thousand, two hundred one".

Divisors: 1 4999 24799 123970201