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1204422830 = 251323402817
BaseRepresentation
bin100011111001010…
…0000100010101110
310002221100000111222
41013302200202232
54431313012310
6315302543342
741563265552
oct10762404256
93087300458
101204422830
11568957776
12297437b52
131626b2640
14b5d61862
1570b11055
hex47ca08ae

1204422830 has 32 divisors (see below), whose sum is σ = 2436243264. Its totient is φ = 425373696.

The previous prime is 1204422829. The next prime is 1204422833. The reversal of 1204422830 is 382244021.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 1204422830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204422833) 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, 198419 + ... + 204398.

It is an arithmetic number, because the mean of its divisors is an integer number (76132602).

Almost surely, 21204422830 is an apocalyptic number.

1204422830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1204422830 is an abundant number, since it is smaller than the sum of its proper divisors (1231820434).

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

1204422830 is a wasteful number, since it uses less digits than its factorization.

1204422830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402860.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1204422830 is about 34704.7954899607. The cubic root of 1204422830 is about 1063.9625124590.

Adding to 1204422830 its reverse (382244021), we get a palindrome (1586666851).

The spelling of 1204422830 in words is "one billion, two hundred four million, four hundred twenty-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 230 299 598 1495 2990 402817 805634 2014085 4028170 5236621 9264791 10473242 18529582 26183105 46323955 52366210 92647910 120442283 240884566 602211415 1204422830