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2420120252 = 221155002733
BaseRepresentation
bin1001000001000000…
…0001101010111100
320020122212211212102
42100100001222330
514424022322002
61040051324232
7113654453114
oct22020015274
96218784772
102420120252
111032105190
125765b0678
132c7511a24
1418d5ba044
15e26eca02
hex90401abc

2420120252 has 12 divisors (see below), whose sum is σ = 4620229656. Its totient is φ = 1100054640.

The previous prime is 2420120251. The next prime is 2420120293. The reversal of 2420120252 is 2520210242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420120251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27501323 + ... + 27501410.

It is an arithmetic number, because the mean of its divisors is an integer number (385019138).

Almost surely, 22420120252 is an apocalyptic number.

2420120252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2420120252 is a deficient number, since it is larger than the sum of its proper divisors (2200109404).

2420120252 is a wasteful number, since it uses less digits than its factorization.

2420120252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55002748 (or 55002746 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2420120252 is about 49194.7177245688. The cubic root of 2420120252 is about 1342.5969264679.

Adding to 2420120252 its reverse (2520210242), we get a palindrome (4940330494).

The spelling of 2420120252 in words is "two billion, four hundred twenty million, one hundred twenty thousand, two hundred fifty-two".

Divisors: 1 2 4 11 22 44 55002733 110005466 220010932 605030063 1210060126 2420120252