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102120411 = 3172002361
BaseRepresentation
bin1100001011000…
…11101111011011
321010011020212110
412011203233123
5202120323121
614044443403
72350003101
oct605435733
9233136773
10102120411
115270a638
122a249563
13182069a3
14d7c3c71
158e72d76
hex6163bdb

102120411 has 8 divisors (see below), whose sum is σ = 144170064. Its totient is φ = 64075520.

The previous prime is 102120371. The next prime is 102120433. The reversal of 102120411 is 114021201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102120411 - 210 = 102119387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102120311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001130 + ... + 1001231.

It is an arithmetic number, because the mean of its divisors is an integer number (18021258).

Almost surely, 2102120411 is an apocalyptic number.

102120411 is a deficient number, since it is larger than the sum of its proper divisors (42049653).

102120411 is a wasteful number, since it uses less digits than its factorization.

102120411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002381.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 102120411 is about 10105.4644128808. The cubic root of 102120411 is about 467.4166566710.

Adding to 102120411 its reverse (114021201), we get a palindrome (216141612).

The spelling of 102120411 in words is "one hundred two million, one hundred twenty thousand, four hundred eleven".

Divisors: 1 3 17 51 2002361 6007083 34040137 102120411