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2485911421 = 73189128717
BaseRepresentation
bin1001010000101011…
…1111111101111101
320102020200101101101
42110022333331331
520042343131141
61050401413101
7115413620110
oct22412777575
96366611341
102485911421
111066261054
1259463a191
13308038906
14198224577
15e8396531
hex942bff7d

2485911421 has 16 divisors (see below), whose sum is σ = 2965662720. Its totient is φ = 2038861440.

The previous prime is 2485911347. The next prime is 2485911473. The reversal of 2485911421 is 1241195842.

It is not a de Polignac number, because 2485911421 - 215 = 2485878653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2485911821) 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, 45046 + ... + 83671.

It is an arithmetic number, because the mean of its divisors is an integer number (185353920).

Almost surely, 22485911421 is an apocalyptic number.

It is an amenable number.

2485911421 is a deficient number, since it is larger than the sum of its proper divisors (479751299).

2485911421 is a wasteful number, since it uses less digits than its factorization.

2485911421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128844.

The product of its digits is 23040, while the sum is 37.

The square root of 2485911421 is about 49858.9151606811. The cubic root of 2485911421 is about 1354.6545182941.

The spelling of 2485911421 in words is "two billion, four hundred eighty-five million, nine hundred eleven thousand, four hundred twenty-one".

Divisors: 1 7 31 89 217 623 2759 19313 128717 901019 3990227 11455813 27931589 80190691 355130203 2485911421