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1220112430 = 25122011243
BaseRepresentation
bin100100010111001…
…0111000000101110
310011000212010121021
41020232113000232
54444322044210
6321023124354
742143533045
oct11056270056
93130763537
101220112430
115767a3589
122a07436ba
13165a16b24
14b808755c
15721aebda
hex48b9702e

1220112430 has 8 divisors (see below), whose sum is σ = 2196202392. Its totient is φ = 488044968.

The previous prime is 1220112427. The next prime is 1220112451. The reversal of 1220112430 is 342110221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61005612 + ... + 61005631.

It is an arithmetic number, because the mean of its divisors is an integer number (274525299).

Almost surely, 21220112430 is an apocalyptic number.

1220112430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220112430 is a deficient number, since it is larger than the sum of its proper divisors (976089962).

1220112430 is a wasteful number, since it uses less digits than its factorization.

1220112430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122011250.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1220112430 is about 34930.1077868363. The cubic root of 1220112430 is about 1068.5625528558.

Adding to 1220112430 its reverse (342110221), we get a palindrome (1562222651).

The spelling of 1220112430 in words is "one billion, two hundred twenty million, one hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 122011243 244022486 610056215 1220112430