Search a number
-
+
3870323712 = 210321923312
BaseRepresentation
bin1110011010110000…
…0111010000000000
3100222201200211000200
43212230013100000
530411300324322
61440014245200
7164624131413
oct34654072000
910881624020
103870323712
111706773542
129001b6800
13498aba398
1428a039b7a
15179bac8ac
hexe6b07400

3870323712 has 396 divisors, whose sum is σ = 12683867040. Its totient is φ = 1131356160.

The previous prime is 3870323641. The next prime is 3870323767. The reversal of 3870323712 is 2173230783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 124849137 + ... + 124849167.

Almost surely, 23870323712 is an apocalyptic number.

3870323712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3870323712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6341933520).

3870323712 is an abundant number, since it is smaller than the sum of its proper divisors (8813543328).

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

3870323712 is a wasteful number, since it uses less digits than its factorization.

3870323712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 3870323712 is about 62211.9258020518. The cubic root of 3870323712 is about 1570.0582438803.

The spelling of 3870323712 in words is "three billion, eight hundred seventy million, three hundred twenty-three thousand, seven hundred twelve".