Search a number
-
+
214215123220 = 22578111886693
BaseRepresentation
bin1100011110000000110…
…1110110000100010100
3202110221000112202122121
43013200031312010110
512002203032420340
6242224205305324
721322310334640
oct3074015660424
9673830482577
10214215123220
118293694171a
1235624265244
131727b37baa7
14a521d95c20
15588b3ec94a
hex31e0376114

214215123220 has 48 divisors (see below), whose sum is σ = 514750497408. Its totient is φ = 73354584960.

The previous prime is 214215123197. The next prime is 214215123229. The reversal of 214215123220 is 22321512412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214215123229) 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, 829807 + ... + 1056886.

It is an arithmetic number, because the mean of its divisors is an integer number (10723968696).

Almost surely, 2214215123220 is an apocalyptic number.

214215123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214215123220 is an abundant number, since it is smaller than the sum of its proper divisors (300535374188).

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

214215123220 is a wasteful number, since it uses less digits than its factorization.

214215123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887520 (or 1887518 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 214215123220 its reverse (22321512412), we get a palindrome (236536635632).

The spelling of 214215123220 in words is "two hundred fourteen billion, two hundred fifteen million, one hundred twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 811 1622 3244 4055 5677 8110 11354 16220 22708 28385 56770 113540 1886693 3773386 7546772 9433465 13206851 18866930 26413702 37733860 52827404 66034255 132068510 264137020 1530108023 3060216046 6120432092 7650540115 10710756161 15301080230 21421512322 30602160460 42843024644 53553780805 107107561610 214215123220