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30233031013220 = 2257215950221523
BaseRepresentation
bin1101101111111001011010…
…00100101111001101100100
310222001020201220122202211112
412313330231010233031210
512430314221414410340
6144144510202324152
76240156456333260
oct667745504571544
9128036656582745
1030233031013220
1196a6835919392
123483444ab9658
1313b3c68a75c59
147674022730a0
1537666cee5065
hex1b7f2d12f364

30233031013220 has 24 divisors (see below), whose sum is σ = 72559274432064. Its totient is φ = 10365610633056.

The previous prime is 30233031013201. The next prime is 30233031013223. The reversal of 30233031013220 is 2231013033203.

It is not an unprimeable number, because it can be changed into a prime (30233031013223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107975110622 + ... + 107975110901.

It is an arithmetic number, because the mean of its divisors is an integer number (3023303101336).

Almost surely, 230233031013220 is an apocalyptic number.

It is an amenable number.

30233031013220 is an abundant number, since it is smaller than the sum of its proper divisors (42326243418844).

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

30233031013220 is a wasteful number, since it uses less digits than its factorization.

30233031013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215950221539 (or 215950221537 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30233031013220 its reverse (2231013033203), we get a palindrome (32464044046423).

The spelling of 30233031013220 in words is "thirty trillion, two hundred thirty-three billion, thirty-one million, thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 215950221523 431900443046 863800886092 1079751107615 1511651550661 2159502215230 3023303101322 4319004430460 6046606202644 7558257753305 15116515506610 30233031013220