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315214352420 = 225111741822971
BaseRepresentation
bin1001001011001000011…
…11010101000000100100
31010010121211102012200012
410211210033111000210
520131024333234140
6400450225305352
731526206534052
oct4454417250044
91103554365605
10315214352420
11111755314480
1251110795258
1323955bb88c6
1411383a031d2
1582ed215265
hex49643d5024

315214352420 has 48 divisors (see below), whose sum is σ = 722543080896. Its totient is φ = 114557424000.

The previous prime is 315214352413. The next prime is 315214352423. The reversal of 315214352420 is 24253412513.

It is not an unprimeable number, because it can be changed into a prime (315214352423) 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, 28466 + ... + 794505.

It is an arithmetic number, because the mean of its divisors is an integer number (15052980852).

Almost surely, 2315214352420 is an apocalyptic number.

It is an amenable number.

315214352420 is an abundant number, since it is smaller than the sum of its proper divisors (407328728476).

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

315214352420 is a wasteful number, since it uses less digits than its factorization.

315214352420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824732 (or 824730 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 315214352420 its reverse (24253412513), we get a palindrome (339467764933).

The spelling of 315214352420 in words is "three hundred fifteen billion, two hundred fourteen million, three hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1741 3482 6964 8705 17410 19151 34820 38302 76604 95755 191510 383020 822971 1645942 3291884 4114855 8229710 9052681 16459420 18105362 36210724 45263405 90526810 181053620 1432792511 2865585022 5731170044 7163962555 14327925110 15760717621 28655850220 31521435242 63042870484 78803588105 157607176210 315214352420