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1220124152 = 231311731963
BaseRepresentation
bin100100010111001…
…1001110111111000
310011000212201200102
41020232121313320
54444322433102
6321023254532
742143612162
oct11056316770
93130781612
101220124152
11576801375
122a074a448
13165a1c270
14b808b932
15721b3402
hex48b99df8

1220124152 has 16 divisors (see below), whose sum is σ = 2463712440. Its totient is φ = 563134176.

The previous prime is 1220124151. The next prime is 1220124181. The reversal of 1220124152 is 2514210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220124151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5865878 + ... + 5866085.

Almost surely, 21220124152 is an apocalyptic number.

It is an amenable number.

1220124152 is an abundant number, since it is smaller than the sum of its proper divisors (1243588288).

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

1220124152 is a wasteful number, since it uses less digits than its factorization.

1220124152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731982 (or 11731978 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1220124152 is about 34930.2755786438. The cubic root of 1220124152 is about 1068.5659748492.

Adding to 1220124152 its reverse (2514210221), we get a palindrome (3734334373).

The spelling of 1220124152 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 11731963 23463926 46927852 93855704 152515519 305031038 610062076 1220124152