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101380789 = 195335831
BaseRepresentation
bin1100000101011…
…11001010110101
321001202200022001
412002233022311
5201423141124
614020535301
72340502546
oct602571265
9231680261
10101380789
1152254984
1229b51531
1318008143
14d6704cd
158d78b44
hex60af2b5

101380789 has 4 divisors (see below), whose sum is σ = 106716640. Its totient is φ = 96044940.

The previous prime is 101380787. The next prime is 101380793. The reversal of 101380789 is 987083101.

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.

It is a cyclic number.

It is not a de Polignac number, because 101380789 - 21 = 101380787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101380787) 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, 2667897 + ... + 2667934.

It is an arithmetic number, because the mean of its divisors is an integer number (26679160).

Almost surely, 2101380789 is an apocalyptic number.

101380789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

101380789 is a deficient number, since it is larger than the sum of its proper divisors (5335851).

101380789 is an equidigital number, since it uses as much as digits as its factorization.

101380789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335850.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 101380789 is about 10068.8027590176. The cubic root of 101380789 is about 466.2854768674.

The spelling of 101380789 in words is "one hundred one million, three hundred eighty thousand, seven hundred eighty-nine".

Divisors: 1 19 5335831 101380789