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20022214068 = 223461796957
BaseRepresentation
bin10010101001011010…
…101011110110110100
31220200101022212020000
4102221122223312310
5312001141322233
613110441311300
71306112003643
oct225132536664
956611285200
1020022214068
11854502185a
123a69495530
131b71184a5c
14d7d22935a
157c2ba7d13
hex4a96abdb4

20022214068 has 30 divisors (see below), whose sum is σ = 52342023426. Its totient is φ = 6674071248.

The previous prime is 20022214061. The next prime is 20022214087. The reversal of 20022214068 is 86041222002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15848795664 + 4173418404 = 125892^2 + 64602^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022214061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30898155 + ... + 30898802.

Almost surely, 220022214068 is an apocalyptic number.

It is an amenable number.

20022214068 is an abundant number, since it is smaller than the sum of its proper divisors (32319809358).

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

20022214068 is a wasteful number, since it uses less digits than its factorization.

20022214068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61796973 (or 61796962 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 20022214068 in words is "twenty billion, twenty-two million, two hundred fourteen thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 61796957 123593914 185390871 247187828 370781742 556172613 741563484 1112345226 1668517839 2224690452 3337035678 5005553517 6674071356 10011107034 20022214068