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102340369 = 857119417
BaseRepresentation
bin1100001100110…
…01011100010001
321010120102121001
412012121130101
5202144342434
614053302001
72351610265
oct606313421
9233512531
10102340369
115284a91a
122a334901
1318282b41
14d8400a5
158eb8114
hex6199711

102340369 has 4 divisors (see below), whose sum is σ = 102460644. Its totient is φ = 102220096.

The previous prime is 102340367. The next prime is 102340417. The reversal of 102340369 is 963043201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963043201 = 1915042111.

It can be written as a sum of positive squares in 2 ways, for example, as 93412225 + 8928144 = 9665^2 + 2988^2 .

It is a cyclic number.

It is not a de Polignac number, because 102340369 - 21 = 102340367 is a prime.

It is a super-2 number, since 2×1023403692 = 20947102254112322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102340361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58852 + ... + 60565.

It is an arithmetic number, because the mean of its divisors is an integer number (25615161).

Almost surely, 2102340369 is an apocalyptic number.

It is an amenable number.

102340369 is a deficient number, since it is larger than the sum of its proper divisors (120275).

102340369 is an equidigital number, since it uses as much as digits as its factorization.

102340369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120274.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 102340369 is about 10116.3416806670. The cubic root of 102340369 is about 467.7520068857.

The spelling of 102340369 in words is "one hundred two million, three hundred forty thousand, three hundred sixty-nine".

Divisors: 1 857 119417 102340369