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1222130310 = 23582349499
BaseRepresentation
bin100100011011000…
…0011101010000110
310011011122122121120
41020312003222012
510000331132220
6321134254410
742166636062
oct11066035206
93134578546
101222130310
11577951655
122a1357406
1316627243b
14b8450aa2
157245ca40
hex48d83a86

1222130310 has 32 divisors (see below), whose sum is σ = 2936736000. Its totient is φ = 325498848.

The previous prime is 1222130297. The next prime is 1222130321. The reversal of 1222130310 is 130312221.

It is a super-2 number, since 2×12221303102 = 2987204989241392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1222130310.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60 + ... + 49439.

It is an arithmetic number, because the mean of its divisors is an integer number (91773000).

Almost surely, 21222130310 is an apocalyptic number.

1222130310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222130310 is an abundant number, since it is smaller than the sum of its proper divisors (1714605690).

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

1222130310 is a wasteful number, since it uses less digits than its factorization.

1222130310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50332.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1222130310 is about 34958.9803913100. The cubic root of 1222130310 is about 1069.1513082715.

Adding to 1222130310 its reverse (130312221), we get a palindrome (1352442531).

The spelling of 1222130310 in words is "one billion, two hundred twenty-two million, one hundred thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 823 1646 2469 4115 4938 8230 12345 24690 49499 98998 148497 247495 296994 494990 742485 1484970 40737677 81475354 122213031 203688385 244426062 407376770 611065155 1222130310