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2872442 = 21436221
BaseRepresentation
bin1010111101010001111010
312101221020202
422331101322
51213404232
6141322202
733262316
oct12752172
95357222
102872442
111692121
12b66362
13797591
1454ab46
153bb162
hex2bd47a

2872442 has 4 divisors (see below), whose sum is σ = 4308666. Its totient is φ = 1436220.

The previous prime is 2872433. The next prime is 2872451. The reversal of 2872442 is 2442782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2442782 = 21221391.

It is an interprime number because it is at equal distance from previous prime (2872433) and next prime (2872451).

It can be written as a sum of positive squares in only one way, i.e., 1792921 + 1079521 = 1339^2 + 1039^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 718109 + ... + 718112.

22872442 is an apocalyptic number.

2872442 is a deficient number, since it is larger than the sum of its proper divisors (1436224).

2872442 is a wasteful number, since it uses less digits than its factorization.

2872442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436223.

The product of its digits is 7168, while the sum is 29.

The square root of 2872442 is about 1694.8280148735. The cubic root of 2872442 is about 142.1511648169.

The spelling of 2872442 in words is "two million, eight hundred seventy-two thousand, four hundred forty-two".

Divisors: 1 2 1436221 2872442