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7539385068 = 22373723293
BaseRepresentation
bin1110000010110000…
…11110001011101100
3201110102200110000000
413001120132023230
5110420040310233
63244043104300
7354555500325
oct70130361354
921412613000
107539385068
113219871656
121564b12090
13931c9a9c7
1451744544c
152e1d61d13
hex1c161e2ec

7539385068 has 96 divisors (see below), whose sum is σ = 20323549120. Its totient is φ = 2445100992.

The previous prime is 7539385013. The next prime is 7539385109. The reversal of 7539385068 is 8605839357.

It is a happy number.

7539385068 is a `hidden beast` number, since 75 + 39 + 38 + 506 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312030 + ... + 335322.

Almost surely, 27539385068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7539385068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10161774560).

7539385068 is an abundant number, since it is smaller than the sum of its proper divisors (12784164052).

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

7539385068 is a wasteful number, since it uses less digits than its factorization.

7539385068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23355 (or 23335 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The square root of 7539385068 is about 86829.6324304094. The cubic root of 7539385068 is about 1960.8542253865.

It can be divided in two parts, 75393 and 85068, that added together give a triangular number (160461 = T566).

The spelling of 7539385068 in words is "seven billion, five hundred thirty-nine million, three hundred eighty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 37 54 74 81 108 111 148 162 222 243 324 333 444 486 666 729 972 999 1332 1458 1998 2187 2916 2997 3996 4374 5994 8748 8991 11988 17982 23293 26973 35964 46586 53946 69879 80919 93172 107892 139758 161838 209637 279516 323676 419274 628911 838548 861841 1257822 1723682 1886733 2515644 2585523 3447364 3773466 5171046 5660199 7546932 7756569 10342092 11320398 15513138 16980597 22640796 23269707 31026276 33961194 46539414 50941791 67922388 69809121 93078828 101883582 139618242 203767164 209427363 279236484 418854726 628282089 837709452 1256564178 1884846267 2513128356 3769692534 7539385068