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9142273 = 72434339
BaseRepresentation
bin100010111000…
…000000000001
3122012110211201
4202320000001
54320023043
6523541201
7140464600
oct42700001
918173751
109142273
1151847a8
12308a801
131b8133a
1412dda37
15c08c4d
hex8b8001

9142273 has 12 divisors (see below), whose sum is σ = 10884720. Its totient is φ = 7652232.

The previous prime is 9142229. The next prime is 9142283. The reversal of 9142273 is 3722419.

It is not a de Polignac number, because 9142273 - 29 = 9141761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9142283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63 + ... + 4276.

It is an arithmetic number, because the mean of its divisors is an integer number (907060).

It is a Proth number, since it is equal to 279 ⋅ 215 + 1 and 279 < 215.

Almost surely, 29142273 is an apocalyptic number.

It is an amenable number.

9142273 is a deficient number, since it is larger than the sum of its proper divisors (1742447).

9142273 is a wasteful number, since it uses less digits than its factorization.

9142273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396 (or 4389 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 9142273 is about 3023.6191889853. The cubic root of 9142273 is about 209.0987300907.

The spelling of 9142273 in words is "nine million, one hundred forty-two thousand, two hundred seventy-three".

Divisors: 1 7 43 49 301 2107 4339 30373 186577 212611 1306039 9142273