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72419950 = 2524730817
BaseRepresentation
bin1000101000100…
…00101001101110
312001021022111101
410110100221232
5122014414300
611104113314
71536362611
oct424205156
9161238441
1072419950
11379741a9
122030583a
1312008155
149892178
156557b6a
hex4510a6e

72419950 has 24 divisors (see below), whose sum is σ = 137571552. Its totient is φ = 28350720.

The previous prime is 72419933. The next prime is 72419959. The reversal of 72419950 is 5991427.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72419959) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 13059 + ... + 17758.

It is an arithmetic number, because the mean of its divisors is an integer number (5732148).

Almost surely, 272419950 is an apocalyptic number.

72419950 is a deficient number, since it is larger than the sum of its proper divisors (65151602).

72419950 is a wasteful number, since it uses less digits than its factorization.

72419950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30876 (or 30871 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 72419950 is about 8509.9911868344. The cubic root of 72419950 is about 416.8240223444.

The spelling of 72419950 in words is "seventy-two million, four hundred nineteen thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 47 50 94 235 470 1175 2350 30817 61634 154085 308170 770425 1448399 1540850 2896798 7241995 14483990 36209975 72419950