Search a number
-
+
72115952148 = 22324634326611
BaseRepresentation
bin100001100101001110…
…0100001101000010100
320220010212212221112200
41003022130201220110
52140143140432043
653043555044500
75132046323232
oct1031234415024
9226125787480
1072115952148
1128647636259
1211b875a0730
136a5392c346
1436c1a55952
151d212797d3
hex10ca721a14

72115952148 has 36 divisors (see below), whose sum is σ = 182686865088. Its totient is φ = 23986725840.

The previous prime is 72115952099. The next prime is 72115952149. The reversal of 72115952148 is 84125951127.

72115952148 is a `hidden beast` number, since 7 + 2 + 11 + 595 + 2 + 1 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72115952149) 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, 2146638 + ... + 2179973.

Almost surely, 272115952148 is an apocalyptic number.

It is an amenable number.

72115952148 is an abundant number, since it is smaller than the sum of its proper divisors (110570912940).

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

72115952148 is a wasteful number, since it uses less digits than its factorization.

72115952148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327084 (or 4327079 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The spelling of 72115952148 in words is "seventy-two billion, one hundred fifteen million, nine hundred fifty-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 463 926 1389 1852 2778 4167 5556 8334 16668 4326611 8653222 12979833 17306444 25959666 38939499 51919332 77878998 155757996 2003220893 4006441786 6009662679 8012883572 12019325358 18028988037 24038650716 36057976074 72115952148