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7009420 = 22511151211
BaseRepresentation
bin11010101111010010001100
3111012010010011
4122233102030
53243300140
6410123004
7113402425
oct32572214
914163104
107009420
113a58310
122420464
1315b55b2
14d0664c
15936cea
hex6af48c

7009420 has 48 divisors (see below), whose sum is σ = 16240896. Its totient is φ = 2520000.

The previous prime is 7009399. The next prime is 7009421. The reversal of 7009420 is 249007.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 7009391 and 7009400.

It is not an unprimeable number, because it can be changed into a prime (7009421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33115 + ... + 33325.

It is an arithmetic number, because the mean of its divisors is an integer number (338352).

Almost surely, 27009420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7009420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8120448).

7009420 is an abundant number, since it is smaller than the sum of its proper divisors (9231476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7009420 is a wasteful number, since it uses less digits than its factorization.

7009420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7009420 is about 2647.5309252207. The cubic root of 7009420 is about 191.3788884420.

The spelling of 7009420 in words is "seven million, nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 151 211 220 302 422 604 755 844 1055 1510 1661 2110 2321 3020 3322 4220 4642 6644 8305 9284 11605 16610 23210 31861 33220 46420 63722 127444 159305 318610 350471 637220 700942 1401884 1752355 3504710 7009420