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20002202120 = 2351953496579
BaseRepresentation
bin10010101000001110…
…010110001000001000
31220121222200010222202
4102220032112020020
5311431030431440
613104444335332
71305446625035
oct225016261010
956558603882
1020002202120
1185347a355a
123a62844548
131b69c99074
14d7a6da38c
157c1053615
hex4a8396208

20002202120 has 64 divisors (see below), whose sum is σ = 48267576000. Its totient is φ = 7436752128.

The previous prime is 20002202119. The next prime is 20002202123. The reversal of 20002202120 is 2120220002.

It is not an unprimeable number, because it can be changed into a prime (20002202123) 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, 208010 + ... + 288569.

It is an arithmetic number, because the mean of its divisors is an integer number (754180875).

Almost surely, 220002202120 is an apocalyptic number.

20002202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002202120 is an abundant number, since it is smaller than the sum of its proper divisors (28265373880).

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

20002202120 is a wasteful number, since it uses less digits than its factorization.

20002202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496662 (or 496658 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20002202120 its reverse (2120220002), we get a palindrome (22122422122).

The spelling of 20002202120 in words is "twenty billion, two million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 53 76 95 106 152 190 212 265 380 424 530 760 1007 1060 2014 2120 4028 5035 8056 10070 20140 40280 496579 993158 1986316 2482895 3972632 4965790 9435001 9931580 18870002 19863160 26318687 37740004 47175005 52637374 75480008 94350010 105274748 131593435 188700020 210549496 263186870 377400040 500055053 526373740 1000110106 1052747480 2000220212 2500275265 4000440424 5000550530 10001101060 20002202120