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270979442 = 2135489721
BaseRepresentation
bin10000001001101…
…101000101110010
3200212220011220122
4100021231011302
51023332320232
642520010242
76500200346
oct2011550562
9625804818
10270979442
11129a62958
1276900982
13441a9886
1427dbb626
1518bca312
hex1026d172

270979442 has 4 divisors (see below), whose sum is σ = 406469166. Its totient is φ = 135489720.

The previous prime is 270979441. The next prime is 270979447. The reversal of 270979442 is 244979072.

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

It can be written as a sum of positive squares in only one way, i.e., 135745801 + 135233641 = 11651^2 + 11629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 270979393 and 270979402.

It is not an unprimeable number, because it can be changed into a prime (270979441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67744859 + ... + 67744862.

Almost surely, 2270979442 is an apocalyptic number.

270979442 is a deficient number, since it is larger than the sum of its proper divisors (135489724).

270979442 is a wasteful number, since it uses less digits than its factorization.

270979442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135489723.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 270979442 is about 16461.4532165298. The cubic root of 270979442 is about 647.1109986361.

The spelling of 270979442 in words is "two hundred seventy million, nine hundred seventy-nine thousand, four hundred forty-two".

Divisors: 1 2 135489721 270979442