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10206620525450 = 252698992920391
BaseRepresentation
bin1001010010000110100111…
…1111011010001110001010
31100010202001221012110220002
42110201221333122032022
52314211124323303300
633412505020003002
72102255400003626
oct224415177321612
940122057173802
1010206620525450
113285670222a58
12118a140690462
13590631c7767b
142740085ca186
1512a76e7245d5
hex94869fda38a

10206620525450 has 24 divisors (see below), whose sum is σ = 18984592274400. Its totient is φ = 4082588404400.

The previous prime is 10206620525447. The next prime is 10206620525459. The reversal of 10206620525450 is 5452502660201.

It is a happy number.

10206620525450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×102066205254503 (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10206620525459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2034755 + ... + 4955145.

It is an arithmetic number, because the mean of its divisors is an integer number (791024678100).

Almost surely, 210206620525450 is an apocalyptic number.

10206620525450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10206620525450 is a deficient number, since it is larger than the sum of its proper divisors (8777971748950).

10206620525450 is a wasteful number, since it uses less digits than its factorization.

10206620525450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990302 (or 2990297 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 10206620525450 in words is "ten trillion, two hundred six billion, six hundred twenty million, five hundred twenty-five thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 69899 139798 349495 698990 1747475 2920391 3494950 5840782 14601955 29203910 73009775 146019550 204132410509 408264821018 1020662052545 2041324105090 5103310262725 10206620525450