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30841768 = 23109113313
BaseRepresentation
bin111010110100…
…1101110101000
32011000220221201
41311221232220
530343414033
63021013544
7523102456
oct165515650
964026851
1030841768
1116455971
12a3b42b4
13650b189
14414b9d6
152a9347d
hex1d69ba8

30841768 has 32 divisors (see below), whose sum is σ = 59063400. Its totient is φ = 15095808.

The previous prime is 30841763. The next prime is 30841771. The reversal of 30841768 is 86714803.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9847044 + 20994724 = 3138^2 + 4582^2 .

It is not an unprimeable number, because it can be changed into a prime (30841763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98380 + ... + 98692.

Almost surely, 230841768 is an apocalyptic number.

It is an amenable number.

30841768 is a deficient number, since it is larger than the sum of its proper divisors (28221632).

30841768 is a wasteful number, since it uses less digits than its factorization.

30841768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 30841768 is about 5553.5365308963. The cubic root of 30841768 is about 313.6026726917.

The spelling of 30841768 in words is "thirty million, eight hundred forty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 109 113 218 226 313 436 452 626 872 904 1252 2504 12317 24634 34117 35369 49268 68234 70738 98536 136468 141476 272936 282952 3855221 7710442 15420884 30841768