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1170430420 = 2253110118691
BaseRepresentation
bin100010111000011…
…0101100111010100
310000120101000200211
41011300311213110
54344112233140
6312050215204
741001331405
oct10560654724
93016330624
101170430420
1155074a775
12287b84504
131586403a3
14b16339ac
156cb492ea
hex45c359d4

1170430420 has 48 divisors (see below), whose sum is σ = 2562448896. Its totient is φ = 448560000.

The previous prime is 1170430411. The next prime is 1170430423. The reversal of 1170430420 is 240340711.

It is a super-2 number, since 2×11704304202 = 2739814736122752800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1170430391 and 1170430400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170430423) 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, 53275 + ... + 71965.

It is an arithmetic number, because the mean of its divisors is an integer number (53384352).

Almost surely, 21170430420 is an apocalyptic number.

1170430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1170430420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281224448).

1170430420 is an abundant number, since it is smaller than the sum of its proper divisors (1392018476).

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

1170430420 is a wasteful number, since it uses less digits than its factorization.

1170430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18832 (or 18830 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1170430420 is about 34211.5538963082. The cubic root of 1170430420 is about 1053.8574424897.

It can be divided in two parts, 11704 and 30420, that added together give a palindrome (42124).

The spelling of 1170430420 in words is "one billion, one hundred seventy million, four hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 101 124 155 202 310 404 505 620 1010 2020 3131 6262 12524 15655 18691 31310 37382 62620 74764 93455 186910 373820 579421 1158842 1887791 2317684 2897105 3775582 5794210 7551164 9438955 11588420 18877910 37755820 58521521 117043042 234086084 292607605 585215210 1170430420