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102101220010 = 2510210122001
BaseRepresentation
bin101111100010110110…
…1001111101010101010
3100202112121110101020001
41133011231033222222
53133100403020020
6114523223253214
710243110023236
oct1370555175252
9322477411201
10102101220010
113a334527869
12179555aa20a
139821c369aa
144d281475c6
1529c894350a
hex17c5b4faaa

102101220010 has 8 divisors (see below), whose sum is σ = 183782196036. Its totient is φ = 40840488000.

The previous prime is 102101219993. The next prime is 102101220041. The reversal of 102101220010 is 10022101201.

It can be written as a sum of positive squares in 2 ways, for example, as 95742592929 + 6358627081 = 309423^2 + 79741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 10210122001 = 102101220010 / (1 + 0 + 2 + 1 + 0 + 1 + 2 + 2 + 0 + 0 + 1 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105060991 + ... + 5105061010.

Almost surely, 2102101220010 is an apocalyptic number.

102101220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102101220010 is a deficient number, since it is larger than the sum of its proper divisors (81680976026).

102101220010 is a wasteful number, since it uses less digits than its factorization.

102101220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210122008.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102101220010 its reverse (10022101201), we get a palindrome (112123321211).

The spelling of 102101220010 in words is "one hundred two billion, one hundred one million, two hundred twenty thousand, ten".

Divisors: 1 2 5 10 10210122001 20420244002 51050610005 102101220010