Search a number
-
+
72690150 = 23521337277
BaseRepresentation
bin1000101010100…
…10100111100110
312001210001010210
410111102213212
5122102041100
611114000250
71541566431
oct425224746
9161701123
1072690150
1138039205
1220416086
13120a1130
149922818
1565acc50
hex45529e6

72690150 has 48 divisors (see below), whose sum is σ = 194143824. Its totient is φ = 17892480.

The previous prime is 72690131. The next prime is 72690157. The reversal of 72690150 is 5109627.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72690157) 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 23 ways as a sum of consecutive naturals, for example, 16689 + ... + 20588.

It is an arithmetic number, because the mean of its divisors is an integer number (4044663).

Almost surely, 272690150 is an apocalyptic number.

72690150 is an abundant number, since it is smaller than the sum of its proper divisors (121453674).

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

72690150 is a wasteful number, since it uses less digits than its factorization.

72690150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37305 (or 37300 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 72690150 is about 8525.8518635970. The cubic root of 72690150 is about 417.3417713478.

Adding to 72690150 its reverse (5109627), we get a palindrome (77799777).

The spelling of 72690150 in words is "seventy-two million, six hundred ninety thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1950 37277 74554 111831 186385 223662 372770 484601 559155 931925 969202 1118310 1453803 1863850 2423005 2795775 2907606 4846010 5591550 7269015 12115025 14538030 24230050 36345075 72690150