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707072 = 291381
BaseRepresentation
bin10101100101000000000
31022220220212
42230220000
5140111242
623053252
76003302
oct2545000
91286825
10707072
11443263
122a1228
131b9ab2
14145972
15de782
hexaca00

707072 has 20 divisors (see below), whose sum is σ = 1413786. Its totient is φ = 353280.

The previous prime is 707071. The next prime is 707099. The reversal of 707072 is 270707.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 92416 = 784^2 + 304^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (707071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179 + ... + 1202.

2707072 is an apocalyptic number.

It is an amenable number.

707072 is a deficient number, since it is larger than the sum of its proper divisors (706714).

707072 is an equidigital number, since it uses as much as digits as its factorization.

707072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 686, while the sum is 23.

The square root of 707072 is about 840.8757339821. The cubic root of 707072 is about 89.0884110718.

Adding to 707072 its reverse (270707), we get a palindrome (977779).

The spelling of 707072 in words is "seven hundred seven thousand, seventy-two", and thus it is an iban number.

Divisors: 1 2 4 8 16 32 64 128 256 512 1381 2762 5524 11048 22096 44192 88384 176768 353536 707072