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1220430213300 = 223527355727407
BaseRepresentation
bin10001110000100111010…
…011110011000010110100
311022200010212202110221010
4101300213103303002310
5124443420113311200
62332354034552220
7154113253436064
oct21604723630264
94280125673833
101220430213300
114306440477a1
1217863b738670
138b11715200c
14430d79db3a4
1521b2d5d7150
hex11c274f30b4

1220430213300 has 72 divisors (see below), whose sum is σ = 3579482870656. Its totient is φ = 320989858560.

The previous prime is 1220430213281. The next prime is 1220430213307. The reversal of 1220430213300 is 33120340221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220430213307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27841804 + ... + 27885603.

Almost surely, 21220430213300 is an apocalyptic number.

1220430213300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220430213300 is an abundant number, since it is smaller than the sum of its proper divisors (2359052657356).

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

1220430213300 is a wasteful number, since it uses less digits than its factorization.

1220430213300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55727497 (or 55727490 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220430213300 its reverse (33120340221), we get a palindrome (1253550553521).

The spelling of 1220430213300 in words is "one trillion, two hundred twenty billion, four hundred thirty million, two hundred thirteen thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 73 75 100 146 150 219 292 300 365 438 730 876 1095 1460 1825 2190 3650 4380 5475 7300 10950 21900 55727407 111454814 167182221 222909628 278637035 334364442 557274070 668728884 835911105 1114548140 1393185175 1671822210 2786370350 3343644420 4068100711 4179555525 5572740700 8136201422 8359111050 12204302133 16272402844 16718222100 20340503555 24408604266 40681007110 48817208532 61021510665 81362014220 101702517775 122043021330 203405035550 244086042660 305107553325 406810071100 610215106650 1220430213300