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2449142231 = 71153122531
BaseRepresentation
bin1001000111111010…
…1111000111010111
320022200111022112112
42101332233013113
520003440022411
61043005341235
7114456236234
oct22176570727
96280438475
102449142231
111047527898
1258426781b
133005337b3
141933b278b
15e5031b8b
hex91faf1d7

2449142231 has 8 divisors (see below), whose sum is σ = 2485369728. Its totient is φ = 2412963000.

The previous prime is 2449142219. The next prime is 2449142239. The reversal of 2449142231 is 1322419442.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2449142231 is a prime.

It is a super-2 number, since 2×24491422312 = 11996595335335314722, 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 (2449142239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97436 + ... + 119966.

It is an arithmetic number, because the mean of its divisors is an integer number (310671216).

Almost surely, 22449142231 is an apocalyptic number.

2449142231 is a deficient number, since it is larger than the sum of its proper divisors (36227497).

2449142231 is a wasteful number, since it uses less digits than its factorization.

2449142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24133.

The product of its digits is 13824, while the sum is 32.

The square root of 2449142231 is about 49488.8091491400. The cubic root of 2449142231 is about 1347.9424038809.

The spelling of 2449142231 in words is "two billion, four hundred forty-nine million, one hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 71 1531 22531 108701 1599701 34494961 2449142231