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72020962 = 2134316427
BaseRepresentation
bin1000100101011…
…11001111100010
312000112001012001
410102233033202
5121414132322
611051354214
71533111436
oct422571742
9160461161
1072020962
1137721462
122015296a
1311bc8670
1497ca9c6
1564c9827
hex44af3e2

72020962 has 16 divisors (see below), whose sum is σ = 116629632. Its totient is φ = 33158160.

The previous prime is 72020957. The next prime is 72020983. The reversal of 72020962 is 26902027.

It is a self number, because there is not a number n which added to its sum of digits gives 72020962.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7993 + ... + 14419.

It is an arithmetic number, because the mean of its divisors is an integer number (7289352).

Almost surely, 272020962 is an apocalyptic number.

72020962 is a deficient number, since it is larger than the sum of its proper divisors (44608670).

72020962 is a wasteful number, since it uses less digits than its factorization.

72020962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72020962 is about 8486.5164820437. The cubic root of 72020962 is about 416.0571335792.

Adding to 72020962 its reverse (26902027), we get a palindrome (98922989).

The spelling of 72020962 in words is "seventy-two million, twenty thousand, nine hundred sixty-two".

Divisors: 1 2 13 26 431 862 5603 6427 11206 12854 83551 167102 2770037 5540074 36010481 72020962