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20692048700 = 2252557371491
BaseRepresentation
bin10011010001010101…
…111001101100111100
31222102001201222121002
4103101111321230330
5314334131024300
613301130225432
71331524340411
oct232125715474
958361658532
1020692048700
1188591384a4
124015885278
131c49b91acb
141004190108
158118bc5d5
hex4d1579b3c

20692048700 has 36 divisors (see below), whose sum is σ = 44982480312. Its totient is φ = 8261937600.

The previous prime is 20692048697. The next prime is 20692048717. The reversal of 20692048700 is 784029602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130046 + ... + 241445.

It is an arithmetic number, because the mean of its divisors is an integer number (1249513342).

Almost surely, 220692048700 is an apocalyptic number.

20692048700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20692048700 is an abundant number, since it is smaller than the sum of its proper divisors (24290431612).

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

20692048700 is a wasteful number, since it uses less digits than its factorization.

20692048700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372062 (or 372055 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 20692048700 in words is "twenty billion, six hundred ninety-two million, forty-eight thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 557 1114 2228 2785 5570 11140 13925 27850 55700 371491 742982 1485964 1857455 3714910 7429820 9287275 18574550 37149100 206920487 413840974 827681948 1034602435 2069204870 4138409740 5173012175 10346024350 20692048700