Search a number
-
+
100272871 = 148767433
BaseRepresentation
bin1011111101000…
…00101011100111
320222200101112001
411332200223213
5201132212441
613541110131
72325206506
oct576405347
9228611461
10100272871
1151668546
12296b8347
1317a0aa7a
14d46283d
158c0a731
hex5fa0ae7

100272871 has 4 divisors (see below), whose sum is σ = 100341792. Its totient is φ = 100203952.

The previous prime is 100272863. The next prime is 100272889. The reversal of 100272871 is 178272001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178272001 = 211844891.

It is a cyclic number.

It is not a de Polignac number, because 100272871 - 23 = 100272863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100272071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32230 + ... + 35203.

It is an arithmetic number, because the mean of its divisors is an integer number (25085448).

Almost surely, 2100272871 is an apocalyptic number.

100272871 is a deficient number, since it is larger than the sum of its proper divisors (68921).

100272871 is an equidigital number, since it uses as much as digits as its factorization.

100272871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68920.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 100272871 is about 10013.6342553540. The cubic root of 100272871 is about 464.5806849311.

The spelling of 100272871 in words is "one hundred million, two hundred seventy-two thousand, eight hundred seventy-one".

Divisors: 1 1487 67433 100272871