Search a number
-
+
2750429987 = 19191757903
BaseRepresentation
bin1010001111110000…
…0011101100100011
321002200102022122022
42203330003230203
521113102224422
61132531132055
7125105161214
oct24374035443
97080368568
102750429987
111191600838
1264914402b
1334aa92786
141c13dd40b
151116e7342
hexa3f03b23

2750429987 has 8 divisors (see below), whose sum is σ = 2910351360. Its totient is φ = 2592024840.

The previous prime is 2750429939. The next prime is 2750429993. The reversal of 2750429987 is 7899240572.

2750429987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2750429987 is a prime.

It is a super-2 number, since 2×27504299872 = 15129730226777640338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2750429287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375323 + ... + 382580.

It is an arithmetic number, because the mean of its divisors is an integer number (363793920).

Almost surely, 22750429987 is an apocalyptic number.

2750429987 is a deficient number, since it is larger than the sum of its proper divisors (159921373).

2750429987 is a wasteful number, since it uses less digits than its factorization.

2750429987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758113.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 2750429987 is about 52444.5420134450. The cubic root of 2750429987 is about 1401.0926821577.

The spelling of 2750429987 in words is "two billion, seven hundred fifty million, four hundred twenty-nine thousand, nine hundred eighty-seven".

Divisors: 1 19 191 3629 757903 14400157 144759473 2750429987