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20514023320 = 235780599091
BaseRepresentation
bin10011000110101110…
…110010011110011000
31221221122202100200111
4103012232302132120
5314003042221240
613231330414104
71324233215110
oct230656623630
957848670614
1020514023320
1187776a438a
123b86131334
131c1c02c94b
14dc868c040
15800e541ea
hex4c6bb2798

20514023320 has 64 divisors (see below), whose sum is σ = 52762694400. Its totient is φ = 7031733120.

The previous prime is 20514023317. The next prime is 20514023323. The reversal of 20514023320 is 2332041502.

It is an interprime number because it is at equal distance from previous prime (20514023317) and next prime (20514023323).

It is a junction number, because it is equal to n+sod(n) for n = 20514023291 and 20514023300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514023323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2251975 + ... + 2261065.

It is an arithmetic number, because the mean of its divisors is an integer number (824417100).

Almost surely, 220514023320 is an apocalyptic number.

20514023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20514023320 is an abundant number, since it is smaller than the sum of its proper divisors (32248671080).

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

20514023320 is a wasteful number, since it uses less digits than its factorization.

20514023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17168 (or 17164 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20514023320 its reverse (2332041502), we get a palindrome (22846064822).

The spelling of 20514023320 in words is "twenty billion, five hundred fourteen million, twenty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 8059 9091 16118 18182 32236 36364 40295 45455 56413 63637 64472 72728 80590 90910 112826 127274 161180 181820 225652 254548 282065 318185 322360 363640 451304 509096 564130 636370 1128260 1272740 2256520 2545480 73264369 146528738 293057476 366321845 512850583 586114952 732643690 1025701166 1465287380 2051402332 2564252915 2930574760 4102804664 5128505830 10257011660 20514023320