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17970748040 = 2357267281487
BaseRepresentation
bin10000101111001000…
…111101101010001000
31201101102010120212202
4100233020331222020
5243301002414130
612131115255332
71204221560300
oct205710755210
951342116782
1017970748040
117692022a93
12359644a548
13190515ac2b
14c269b4600
15702a2b145
hex42f23da88

17970748040 has 192 divisors, whose sum is σ = 48005965440. Its totient is φ = 6035420160.

The previous prime is 17970747997. The next prime is 17970748051. The reversal of 17970748040 is 4084707971.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36900677 + ... + 36901163.

It is an arithmetic number, because the mean of its divisors is an integer number (250031070).

Almost surely, 217970748040 is an apocalyptic number.

17970748040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17970748040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24002982720).

17970748040 is an abundant number, since it is smaller than the sum of its proper divisors (30035217400).

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

17970748040 is a wasteful number, since it uses less digits than its factorization.

17970748040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 17970748040 in words is "seventeen billion, nine hundred seventy million, seven hundred forty-eight thousand, forty".