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20057370501 = 37192319111443
BaseRepresentation
bin10010101011100000…
…110010111110000101
31220202211110222210010
4102223200302332011
5312034141324001
613114135020433
71310016556560
oct225340627605
956684428703
1020057370501
118562954363
123a7920a719
131b78543a8c
14d83b7b4d7
157c5cee8d6
hex4ab832f85

20057370501 has 64 divisors (see below), whose sum is σ = 33749729280. Its totient is φ = 10330752960.

The previous prime is 20057370493. The next prime is 20057370521. The reversal of 20057370501 is 10507375002.

It is not a de Polignac number, because 20057370501 - 23 = 20057370493 is a prime.

It is a super-2 number, since 2×200573705012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20057370521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1747086 + ... + 1758528.

It is an arithmetic number, because the mean of its divisors is an integer number (527339520).

Almost surely, 220057370501 is an apocalyptic number.

20057370501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20057370501 is a deficient number, since it is larger than the sum of its proper divisors (13692358779).

20057370501 is a wasteful number, since it uses less digits than its factorization.

20057370501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11686.

The product of its (nonzero) digits is 7350, while the sum is 30.

The spelling of 20057370501 in words is "twenty billion, fifty-seven million, three hundred seventy thousand, five hundred one".

Divisors: 1 3 7 19 21 23 57 69 133 161 191 399 437 483 573 1311 1337 3059 3629 4011 4393 9177 10887 11443 13179 25403 30751 34329 76209 80101 83467 92253 217417 240303 250401 263189 584269 652251 789567 1521919 1752807 1842323 2185613 4565757 5000591 5526969 6556839 15001773 15299291 35004137 41526647 45897873 50269099 105012411 124579941 150807297 290686529 351883693 872059587 955112881 1055651079 2865338643 6685790167 20057370501