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10210102101 = 321134455789
BaseRepresentation
bin10011000001001000…
…11100101101010101
3222100120002221000200
421200210130231111
5131402241231401
64405045531113
7511005302343
oct114044345525
928316087020
1010210102101
11436a377911
121b8b413a99
13c693a0944
146cc014993
153eb560686
hex26091cb55

10210102101 has 6 divisors (see below), whose sum is σ = 14747925270. Its totient is φ = 6806734728.

The previous prime is 10210102087. The next prime is 10210102151. The reversal of 10210102101 is 10120101201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8380487025 + 1829615076 = 91545^2 + 42774^2 .

It is not a de Polignac number, because 10210102101 - 26 = 10210102037 is a prime.

It is a super-2 number, since 2×102101021012 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1134455789 = 10210102101 / (1 + 0 + 2 + 1 + 0 + 1 + 0 + 2 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210102151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567227886 + ... + 567227903.

It is an arithmetic number, because the mean of its divisors is an integer number (2457987545).

Almost surely, 210210102101 is an apocalyptic number.

It is an amenable number.

10210102101 is a deficient number, since it is larger than the sum of its proper divisors (4537823169).

10210102101 is a wasteful number, since it uses less digits than its factorization.

10210102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134455795 (or 1134455792 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10210102101 its reverse (10120101201), we get a palindrome (20330203302).

The spelling of 10210102101 in words is "ten billion, two hundred ten million, one hundred two thousand, one hundred one".

Divisors: 1 3 9 1134455789 3403367367 10210102101