Search a number
-
+
2257954 = 21128977
BaseRepresentation
bin1000100111010000100010
311020201022221
420213100202
51034223304
6120221254
725122646
oct10472042
94221287
102257954
111302486
1290a82a
1361098a
1442ac26
152e9054
hex227422

2257954 has 4 divisors (see below), whose sum is σ = 3386934. Its totient is φ = 1128976.

The previous prime is 2257949. The next prime is 2257961. The reversal of 2257954 is 4597522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4597522 = 22298761.

It can be written as a sum of positive squares in only one way, i.e., 1760929 + 497025 = 1327^2 + 705^2 .

It is a super-2 number, since 2×22579542 = 10196712532232, which contains 22 as substring.

It is a d-powerful number, because it can be written as 25 + 221 + 57 + 73 + 92 + 57 + 46 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564487 + ... + 564490.

22257954 is an apocalyptic number.

2257954 is a deficient number, since it is larger than the sum of its proper divisors (1128980).

2257954 is a wasteful number, since it uses less digits than its factorization.

2257954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128979.

The product of its digits is 25200, while the sum is 34.

The square root of 2257954 is about 1502.6489942764. The cubic root of 2257954 is about 131.1912983149.

The spelling of 2257954 in words is "two million, two hundred fifty-seven thousand, nine hundred fifty-four".

Divisors: 1 2 1128977 2257954