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202103408 = 2413971651
BaseRepresentation
bin11000000101111…
…01101001110000
3112002021220202102
430002331221300
5403214302113
632015435532
75002564523
oct1402755160
9462256672
10202103408
11a409a311
1257825ba8
1332b42820
141cbacbba
1512b22758
hexc0bda70

202103408 has 20 divisors (see below), whose sum is σ = 421696968. Its totient is φ = 93278400.

The previous prime is 202103401. The next prime is 202103441. The reversal of 202103408 is 804301202.

It is a self number, because there is not a number n which added to its sum of digits gives 202103408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202103401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485618 + ... + 486033.

Almost surely, 2202103408 is an apocalyptic number.

It is an amenable number.

202103408 is an abundant number, since it is smaller than the sum of its proper divisors (219593560).

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

202103408 is a wasteful number, since it uses less digits than its factorization.

202103408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971672 (or 971666 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 202103408 is about 14216.3078188396. The cubic root of 202103408 is about 586.8465363301.

It can be divided in two parts, 202 and 103408, that multiplied together give a triangular number (20888416 = T6463).

The spelling of 202103408 in words is "two hundred two million, one hundred three thousand, four hundred eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 971651 1943302 3886604 7773208 12631463 15546416 25262926 50525852 101051704 202103408