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12002122085 = 523412545519
BaseRepresentation
bin10110010110110000…
…11101100101100101
31010222110002222022012
423023120131211211
5144040020401320
65302543044005
7603265232402
oct131330354545
933873088265
1012002122085
1150a9980a68
1223ab5a0605
1311937286b5
1481c0112a9
154a3a3e4c5
hex2cb61d965

12002122085 has 16 divisors (see below), whose sum is σ = 15395304960. Its totient is φ = 8960223360.

The previous prime is 12002122057. The next prime is 12002122087. The reversal of 12002122085 is 58022120021.

It is not a de Polignac number, because 12002122085 - 214 = 12002105701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 12002122085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002122087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268045 + ... + 1277474.

It is an arithmetic number, because the mean of its divisors is an integer number (962206560).

Almost surely, 212002122085 is an apocalyptic number.

It is an amenable number.

12002122085 is a deficient number, since it is larger than the sum of its proper divisors (3393182875).

12002122085 is a wasteful number, since it uses less digits than its factorization.

12002122085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545588.

The product of its (nonzero) digits is 640, while the sum is 23.

The spelling of 12002122085 in words is "twelve billion, two million, one hundred twenty-two thousand, eighty-five".

Divisors: 1 5 23 41 115 205 943 4715 2545519 12727595 58546937 104366279 292734685 521831395 2400424417 12002122085