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492537421 = 2916984049
BaseRepresentation
bin11101010110111…
…000011001001101
31021022210111022201
4131112320121031
52002042144141
6120512441501
715130333105
oct3526703115
91238714281
10492537421
1123302a722
12118b49291
137b07147c
14495b2205
152d392031
hex1d5b864d

492537421 has 4 divisors (see below), whose sum is σ = 509521500. Its totient is φ = 475553344.

The previous prime is 492537391. The next prime is 492537431. The reversal of 492537421 is 124735294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146168100 + 346369321 = 12090^2 + 18611^2 .

It is a cyclic number.

It is not a de Polignac number, because 492537421 - 223 = 484148813 is a prime.

It is a super-2 number, since 2×4925374212 = 485186222170662482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492537431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8491996 + ... + 8492053.

It is an arithmetic number, because the mean of its divisors is an integer number (127380375).

Almost surely, 2492537421 is an apocalyptic number.

It is an amenable number.

492537421 is a deficient number, since it is larger than the sum of its proper divisors (16984079).

492537421 is a wasteful number, since it uses less digits than its factorization.

492537421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16984078.

The product of its digits is 60480, while the sum is 37.

The square root of 492537421 is about 22193.1841113437. The cubic root of 492537421 is about 789.7320145355.

The spelling of 492537421 in words is "four hundred ninety-two million, five hundred thirty-seven thousand, four hundred twenty-one".

Divisors: 1 29 16984049 492537421