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39470130 = 23257314347
BaseRepresentation
bin1001011010010…
…0010000110010
32202021021211200
42112210100302
540101021010
63525552030
7656330160
oct226442062
982237750
1039470130
1120309547
1211275616
13823c60b
145356230
1536e9cc0
hex25a4432

39470130 has 192 divisors, whose sum is σ = 126517248. Its totient is φ = 8346240.

The previous prime is 39470129. The next prime is 39470147. The reversal of 39470130 is 3107493.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39470094 and 39470103.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 839767 + ... + 839813.

It is an arithmetic number, because the mean of its divisors is an integer number (658944).

It is a vampire number, since it can be written as 43719030 (with its own digits).

Almost surely, 239470130 is an apocalyptic number.

39470130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39470130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63258624).

39470130 is an abundant number, since it is smaller than the sum of its proper divisors (87047118).

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

39470130 is a wasteful number, since it uses less digits than its factorization.

39470130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 39470130 is about 6282.5257659639. The cubic root of 39470130 is about 340.4783635588.

The spelling of 39470130 in words is "thirty-nine million, four hundred seventy thousand, one hundred thirty".