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1220202130 = 257130713337
BaseRepresentation
bin100100010111010…
…1100111010010010
310011001000200122111
41020232230322102
54444332432010
6321025055534
742144355420
oct11056547222
93131020574
101220202130
11576854a14
122a07875aa
13165a488c4
14b80ac110
15721cb58a
hex48bace92

1220202130 has 32 divisors (see below), whose sum is σ = 2512238976. Its totient is φ = 418003584.

The previous prime is 1220202101. The next prime is 1220202143. The reversal of 1220202130 is 312020221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220202130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84822 + ... + 98158.

It is an arithmetic number, because the mean of its divisors is an integer number (78507468).

Almost surely, 21220202130 is an apocalyptic number.

1220202130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220202130 is an abundant number, since it is smaller than the sum of its proper divisors (1292036846).

1220202130 is a wasteful number, since it uses less digits than its factorization.

1220202130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14658.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220202130 is about 34931.3917558405. The cubic root of 1220202130 is about 1068.5887383422.

Adding to 1220202130 its reverse (312020221), we get a palindrome (1532222351).

The spelling of 1220202130 in words is "one billion, two hundred twenty million, two hundred two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1307 2614 6535 9149 13070 13337 18298 26674 45745 66685 91490 93359 133370 186718 466795 933590 17431459 34862918 87157295 122020213 174314590 244040426 610101065 1220202130