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30202407 = 325416203
BaseRepresentation
bin111001100110…
…1101000100111
32002211102220200
41303031220213
530212434112
62555201543
7514500444
oct163155047
962742820
1030202407
1116059574
12a1462b3
136346161
1440229cb
1529b8cdc
hex1ccda27

30202407 has 12 divisors (see below), whose sum is σ = 43713384. Its totient is φ = 20094480.

The previous prime is 30202399. The next prime is 30202409. The reversal of 30202407 is 70420203.

It is a happy number.

It is not a de Polignac number, because 30202407 - 23 = 30202399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30202407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1768 + ... + 7970.

It is an arithmetic number, because the mean of its divisors is an integer number (3642782).

Almost surely, 230202407 is an apocalyptic number.

30202407 is a deficient number, since it is larger than the sum of its proper divisors (13510977).

30202407 is a wasteful number, since it uses less digits than its factorization.

30202407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750 (or 6747 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30202407 is about 5495.6716604979. The cubic root of 30202407 is about 311.4204911010.

The spelling of 30202407 in words is "thirty million, two hundred two thousand, four hundred seven".

Divisors: 1 3 9 541 1623 4869 6203 18609 55827 3355823 10067469 30202407