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18970743300 = 2235263235811
BaseRepresentation
bin10001101010101111…
…101001001000000100
31210222002210121111020
4101222233221020010
5302323002241200
612414240511140
71241053441335
oct215257511004
953862717436
1018970743300
118055543253
12381531b4b0
131a34395bc2
14cbd72028c
1576070aea0
hex46abe9204

18970743300 has 36 divisors (see below), whose sum is σ = 54888684816. Its totient is φ = 5058864800.

The previous prime is 18970743299. The next prime is 18970743301. The reversal of 18970743300 is 334707981.

It is an interprime number because it is at equal distance from previous prime (18970743299) and next prime (18970743301).

It is a super-4 number, since 4×189707433004 (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (18970743301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31617606 + ... + 31618205.

Almost surely, 218970743300 is an apocalyptic number.

18970743300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18970743300 is an abundant number, since it is smaller than the sum of its proper divisors (35917941516).

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

18970743300 is a wasteful number, since it uses less digits than its factorization.

18970743300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63235828 (or 63235821 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 18970743300 in words is "eighteen billion, nine hundred seventy million, seven hundred forty-three thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 63235811 126471622 189707433 252943244 316179055 379414866 632358110 758829732 948537165 1264716220 1580895275 1897074330 3161790550 3794148660 4742685825 6323581100 9485371650 18970743300