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30507388000 = 255319237571
BaseRepresentation
bin11100011010011000…
…011100110001100000
32220202010000212212021
4130122120130301200
5444434342404000
622003115111224
72130000343105
oct343230346140
986663025767
1030507388000
1111a35697161
125ab4a42514
132b52535b9b
1416959a4aac
15bd845111a
hex71a61cc60

30507388000 has 288 divisors, whose sum is σ = 81389756448. Its totient is φ = 11228544000.

The previous prime is 30507387949. The next prime is 30507388003. The reversal of 30507388000 is 88370503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30507388003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53427715 + ... + 53428285.

It is an arithmetic number, because the mean of its divisors is an integer number (282603321).

Almost surely, 230507388000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30507388000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40694878224).

30507388000 is an abundant number, since it is smaller than the sum of its proper divisors (50882368448).

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

30507388000 is a wasteful number, since it uses less digits than its factorization.

30507388000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 30507388000 in words is "thirty billion, five hundred seven million, three hundred eighty-eight thousand".