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20124542352 = 2431073939041
BaseRepresentation
bin10010101111100001…
…000010010110010000
31220221111212200020110
4102233201002112100
5312203340323402
613124534441320
71311463534065
oct225741022620
956844780213
1020124542352
118597863592
123a97803240
131b89432235
14d8ca64c6c
157cbb6c56c
hex4af842590

20124542352 has 40 divisors (see below), whose sum is σ = 51994573920. Its totient is φ = 6707384320.

The previous prime is 20124542329. The next prime is 20124542357. The reversal of 20124542352 is 25324542102.

It is not an unprimeable number, because it can be changed into a prime (20124542357) 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, 495952 + ... + 534992.

It is an arithmetic number, because the mean of its divisors is an integer number (1299864348).

Almost surely, 220124542352 is an apocalyptic number.

It is an amenable number.

20124542352 is an abundant number, since it is smaller than the sum of its proper divisors (31870031568).

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

20124542352 is a wasteful number, since it uses less digits than its factorization.

20124542352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49791 (or 49785 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 20124542352 in words is "twenty billion, one hundred twenty-four million, five hundred forty-two thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 10739 21478 32217 39041 42956 64434 78082 85912 117123 128868 156164 171824 234246 257736 312328 468492 515472 624656 936984 1873968 419261299 838522598 1257783897 1677045196 2515567794 3354090392 5031135588 6708180784 10062271176 20124542352