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102970433 = 137751609
BaseRepresentation
bin1100010001100…
…11010001000001
321011202102212202
412020303101001
5202330023213
614115002545
72360143226
oct610632101
9234672782
10102970433
1153140235
122a599455
1318443867
14d96594d
15908eb58
hex6233441

102970433 has 4 divisors (see below), whose sum is σ = 103722180. Its totient is φ = 102218688.

The previous prime is 102970421. The next prime is 102970451. The reversal of 102970433 is 334079201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334079201 = 1572127893.

It can be written as a sum of positive squares in 2 ways, for example, as 41692849 + 61277584 = 6457^2 + 7828^2 .

It is a cyclic number.

It is not a de Polignac number, because 102970433 - 218 = 102708289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102970396 and 102970405.

It is not an unprimeable number, because it can be changed into a prime (102970403) 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, 375668 + ... + 375941.

It is an arithmetic number, because the mean of its divisors is an integer number (25930545).

Almost surely, 2102970433 is an apocalyptic number.

It is an amenable number.

102970433 is a deficient number, since it is larger than the sum of its proper divisors (751747).

102970433 is an equidigital number, since it uses as much as digits as its factorization.

102970433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751746.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 102970433 is about 10147.4347990022. The cubic root of 102970433 is about 468.7099571602.

The spelling of 102970433 in words is "one hundred two million, nine hundred seventy thousand, four hundred thirty-three".

Divisors: 1 137 751609 102970433