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102231340 = 2255111567
BaseRepresentation
bin1100001011111…
…10110100101100
321010100220000221
412011332310230
5202132400330
614051101124
72350644361
oct605766454
9233326027
10102231340
1152785a12
122a2a17a4
1318245323
14d812468
158e95b7a
hex617ed2c

102231340 has 12 divisors (see below), whose sum is σ = 214685856. Its totient is φ = 40892528.

The previous prime is 102231301. The next prime is 102231361. The reversal of 102231340 is 43132201.

It is a happy number.

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, 2555764 + ... + 2555803.

It is an arithmetic number, because the mean of its divisors is an integer number (17890488).

Almost surely, 2102231340 is an apocalyptic number.

102231340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102231340 is an abundant number, since it is smaller than the sum of its proper divisors (112454516).

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

102231340 is a wasteful number, since it uses less digits than its factorization.

102231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111576 (or 5111574 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102231340 is about 10110.9514883615. The cubic root of 102231340 is about 467.5858402813.

Adding to 102231340 its reverse (43132201), we get a palindrome (145363541).

The spelling of 102231340 in words is "one hundred two million, two hundred thirty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 5111567 10223134 20446268 25557835 51115670 102231340