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106237507 = 251423257
BaseRepresentation
bin1100101010100…
…00111001000011
321101220102110111
412111100321003
5204144100012
614313012151
72430001225
oct625207103
9241812414
10106237507
1154a718a2
122b6b4057
131901893c
1410176415
1594d7ba7
hex6550e43

106237507 has 4 divisors (see below), whose sum is σ = 106661016. Its totient is φ = 105814000.

The previous prime is 106237501. The next prime is 106237511. The reversal of 106237507 is 705732601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705732601 = 7100818943.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-106237507 is a prime.

It is a super-2 number, since 2×1062375072 = 22572815787150098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106237501) 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, 211378 + ... + 211879.

It is an arithmetic number, because the mean of its divisors is an integer number (26665254).

Almost surely, 2106237507 is an apocalyptic number.

106237507 is a deficient number, since it is larger than the sum of its proper divisors (423509).

106237507 is an equidigital number, since it uses as much as digits as its factorization.

106237507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423508.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 106237507 is about 10307.1580467169. The cubic root of 106237507 is about 473.6155543797.

The spelling of 106237507 in words is "one hundred six million, two hundred thirty-seven thousand, five hundred seven".

Divisors: 1 251 423257 106237507