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102973943 = 199517457
BaseRepresentation
bin1100010001101…
…00000111110111
321011202121200202
412020310013313
5202330131233
614115031115
72360156402
oct610640767
9234677622
10102973943
1153142936
122a59b49b
1318445337
14d966d39
159090be8
hex62341f7

102973943 has 4 divisors (see below), whose sum is σ = 103491600. Its totient is φ = 102456288.

The previous prime is 102973933. The next prime is 102973951. The reversal of 102973943 is 349379201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102973943 - 28 = 102973687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102973897 and 102973906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102973903) 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, 258530 + ... + 258927.

It is an arithmetic number, because the mean of its divisors is an integer number (25872900).

Almost surely, 2102973943 is an apocalyptic number.

102973943 is a deficient number, since it is larger than the sum of its proper divisors (517657).

102973943 is an equidigital number, since it uses as much as digits as its factorization.

102973943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517656.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 102973943 is about 10147.6077476418. The cubic root of 102973943 is about 468.7152828095.

The spelling of 102973943 in words is "one hundred two million, nine hundred seventy-three thousand, nine hundred forty-three".

Divisors: 1 199 517457 102973943