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3889906530 = 235239954049
BaseRepresentation
bin1110011111011011…
…0100001101100010
3101001002112201121020
43213312310031202
530431304002110
61441554110310
7165252442236
oct34766641542
911032481536
103889906530
111716829394
1290687b396
1349cb85953
1428c8965c6
1517b779d70
hexe7db4362

3889906530 has 32 divisors (see below), whose sum is σ = 9339840000. Its totient is φ = 1036856832.

The previous prime is 3889906523. The next prime is 3889906541. The reversal of 3889906530 is 356099883.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44946 + ... + 98994.

It is an arithmetic number, because the mean of its divisors is an integer number (291870000).

Almost surely, 23889906530 is an apocalyptic number.

3889906530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3889906530 is an abundant number, since it is smaller than the sum of its proper divisors (5449933470).

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

3889906530 is a wasteful number, since it uses less digits than its factorization.

3889906530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56458.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 3889906530 is about 62369.1151933391. The cubic root of 3889906530 is about 1572.7018172666.

The spelling of 3889906530 in words is "three billion, eight hundred eighty-nine million, nine hundred six thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2399 4798 7197 11995 14394 23990 35985 54049 71970 108098 162147 270245 324294 540490 810735 1621470 129663551 259327102 388990653 648317755 777981306 1296635510 1944953265 3889906530