Search a number
-
+
102377393 = 234451191
BaseRepresentation
bin1100001101000…
…10011110110001
321010122022101022
412012202132301
5202202034033
614054145225
72352123236
oct606423661
9233568338
10102377393
1152875718
122a352215
1318296951
14d84d78d
158ec4098
hex61a27b1

102377393 has 4 divisors (see below), whose sum is σ = 106828608. Its totient is φ = 97926180.

The previous prime is 102377381. The next prime is 102377399. The reversal of 102377393 is 393773201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 393773201 = 1492326387.

It is not a de Polignac number, because 102377393 - 28 = 102377137 is a prime.

It is a super-2 number, since 2×1023773932 = 20962261194952898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102377399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2225573 + ... + 2225618.

It is an arithmetic number, because the mean of its divisors is an integer number (26707152).

Almost surely, 2102377393 is an apocalyptic number.

It is an amenable number.

102377393 is a deficient number, since it is larger than the sum of its proper divisors (4451215).

102377393 is an equidigital number, since it uses as much as digits as its factorization.

102377393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451214.

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 102377393 is about 10118.1714257073. The cubic root of 102377393 is about 467.8084067942.

The spelling of 102377393 in words is "one hundred two million, three hundred seventy-seven thousand, three hundred ninety-three".

Divisors: 1 23 4451191 102377393