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7420970 = 253172341
BaseRepresentation
bin11100010011110000101010
3111222000122202
4130103300222
53344432340
6423020202
7120035324
oct34236052
914860582
107420970
114209537
12259a662
1316caa0b
14db2614
159b8c15
hex713c2a

7420970 has 16 divisors (see below), whose sum is σ = 13405608. Its totient is φ = 2957760.

The previous prime is 7420969. The next prime is 7421003. The reversal of 7420970 is 790247.

It can be written as a sum of positive squares in 4 ways, for example, as 4635409 + 2785561 = 2153^2 + 1669^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000 + ... + 4340.

Almost surely, 27420970 is an apocalyptic number.

7420970 is a deficient number, since it is larger than the sum of its proper divisors (5984638).

7420970 is a wasteful number, since it uses less digits than its factorization.

7420970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 7420970 is about 2724.1457376580. The cubic root of 7420970 is about 195.0534151281.

The spelling of 7420970 in words is "seven million, four hundred twenty thousand, nine hundred seventy".

Divisors: 1 2 5 10 317 634 1585 2341 3170 4682 11705 23410 742097 1484194 3710485 7420970