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30227908440 = 2335251899237
BaseRepresentation
bin11100001001101110…
…010100011101011000
32220000122010211222110
4130021232110131120
5443401321032230
621515252552320
72120034660642
oct341156243530
986018124873
1030227908440
1111901959014
125a373226a0
132b09671372
14166a813892
15bbdb474b0
hex709b94758

30227908440 has 32 divisors (see below), whose sum is σ = 90683725680. Its totient is φ = 8060775552.

The previous prime is 30227908421. The next prime is 30227908441. The reversal of 30227908440 is 4480972203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30227908441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125949499 + ... + 125949738.

Almost surely, 230227908440 is an apocalyptic number.

30227908440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30227908440 is an abundant number, since it is smaller than the sum of its proper divisors (60455817240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30227908440 is a wasteful number, since it uses less digits than its factorization.

30227908440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251899251 (or 251899247 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 30227908440 in words is "thirty billion, two hundred twenty-seven million, nine hundred eight thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 251899237 503798474 755697711 1007596948 1259496185 1511395422 2015193896 2518992370 3022790844 3778488555 5037984740 6045581688 7556977110 10075969480 15113954220 30227908440