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39440000272 = 24171910374093
BaseRepresentation
bin100100101110110011…
…101010010100010000
310202210122022121021211
4210232303222110100
51121233120002042
630041332025504
72564234320351
oct445663522420
9122718277254
1039440000272
11157a9940a52
127788462294
13394705068a
141ca2077d28
15105c76b017
hex92ecea510

39440000272 has 80 divisors (see below), whose sum is σ = 85996460160. Its totient is φ = 17412212736.

The previous prime is 39440000267. The next prime is 39440000273. The reversal of 39440000272 is 27200004493.

It is not an unprimeable number, because it can be changed into a prime (39440000273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495258 + ... + 569350.

It is an arithmetic number, because the mean of its divisors is an integer number (1074955752).

Almost surely, 239440000272 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 39440000272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42998230080).

39440000272 is an abundant number, since it is smaller than the sum of its proper divisors (46556459888).

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

39440000272 is a wasteful number, since it uses less digits than its factorization.

39440000272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74240 (or 74234 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 39440000272 in words is "thirty-nine billion, four hundred forty million, two hundred seventy-two", and thus it is an aban number.

Divisors: 1 2 4 8 16 17 19 34 38 68 76 103 136 152 206 272 304 323 412 646 824 1292 1648 1751 1957 2584 3502 3914 5168 7004 7828 14008 15656 28016 31312 33269 66538 74093 133076 148186 266152 296372 532304 592744 1185488 1259581 1407767 2519162 2815534 5038324 5631068 7631579 10076648 11262136 15263158 20153296 22524272 23932039 30526316 47864078 61052632 95728156 122105264 129736843 145000001 191456312 259473686 290000002 382912624 518947372 580000004 1037894744 1160000008 2075789488 2320000016 2465000017 4930000034 9860000068 19720000136 39440000272