Search a number
-
+
38742102378 = 23273167317467
BaseRepresentation
bin100100000101001101…
…011001000101101010
310201000000002201100200
4210011031121011222
51113320434234003
625444201413030
72541031302540
oct440515310552
9121000081320
1038742102378
11154809a7a31
12761279a176
133865599045
141c374c9d90
15101b3616a3
hex90535916a

38742102378 has 192 divisors, whose sum is σ = 101038399488. Its totient is φ = 10496407680.

The previous prime is 38742102367. The next prime is 38742102389. The reversal of 38742102378 is 87320124783.

It is an interprime number because it is at equal distance from previous prime (38742102367) and next prime (38742102389).

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, 82959301 + ... + 82959767.

It is an arithmetic number, because the mean of its divisors is an integer number (526241664).

Almost surely, 238742102378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38742102378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50519199744).

38742102378 is an abundant number, since it is smaller than the sum of its proper divisors (62296297110).

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

38742102378 is a wasteful number, since it uses less digits than its factorization.

38742102378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 38742102378 in words is "thirty-eight billion, seven hundred forty-two million, one hundred two thousand, three hundred seventy-eight".