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30839101 = 241112791
BaseRepresentation
bin111010110100…
…1000100111101
32011000210021221
41311221010331
530343322401
63020553341
7523061626
oct165510475
964023257
1030839101
1116453967
12a3b2851
136509bb7
14414aa4d
152a927a1
hex1d6913d

30839101 has 4 divisors (see below), whose sum is σ = 30854304. Its totient is φ = 30823900.

The previous prime is 30839089. The next prime is 30839119. The reversal of 30839101 is 10193803.

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 a de Polignac number, because none of the positive numbers 2k-30839101 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 (30839131) 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, 3985 + ... + 8806.

It is an arithmetic number, because the mean of its divisors is an integer number (7713576).

Almost surely, 230839101 is an apocalyptic number.

It is an amenable number.

30839101 is a deficient number, since it is larger than the sum of its proper divisors (15203).

30839101 is a wasteful number, since it uses less digits than its factorization.

30839101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15202.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 30839101 is about 5553.2964084407. The cubic root of 30839101 is about 313.5936329761.

The spelling of 30839101 in words is "thirty million, eight hundred thirty-nine thousand, one hundred one".

Divisors: 1 2411 12791 30839101