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64103401420 = 22553293206399
BaseRepresentation
bin111011101100110111…
…000100011111001100
320010110110212012021121
4323230313010133030
52022240432321140
645240530210324
74426353631102
oct735467043714
9203413765247
1064103401420
1125205776303
12105101239a4
136077913676
143161841c72
151a02b0064a
hexeecdc47cc

64103401420 has 48 divisors (see below), whose sum is σ = 137625868800. Its totient is φ = 25071577856.

The previous prime is 64103401381. The next prime is 64103401471. The reversal of 64103401420 is 2410430146.

It is a super-2 number, since 2×641034014202 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207381 + ... + 413779.

It is an arithmetic number, because the mean of its divisors is an integer number (2867205600).

Almost surely, 264103401420 is an apocalyptic number.

It is an amenable number.

64103401420 is an abundant number, since it is smaller than the sum of its proper divisors (73522467380).

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

64103401420 is a wasteful number, since it uses less digits than its factorization.

64103401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206754 (or 206752 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 64103401420 its reverse (2410430146), we get a palindrome (66513831566).

The spelling of 64103401420 in words is "sixty-four billion, one hundred three million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 293 530 586 1060 1172 1465 2930 5860 15529 31058 62116 77645 155290 206399 310580 412798 825596 1031995 2063990 4127980 10939147 21878294 43756588 54695735 60474907 109391470 120949814 218782940 241899628 302374535 604749070 1209498140 3205170071 6410340142 12820680284 16025850355 32051700710 64103401420