Search a number
-
+
30926129 = 1319125207
BaseRepresentation
bin111010111111…
…0010100110001
32011012012200012
41311332110301
530404114004
63022504305
7523603433
oct165762461
964165605
1030926129
1116503293
12a435095
13653a6b0
144170653
152aad46e
hex1d7e531

30926129 has 8 divisors (see below), whose sum is σ = 35058240. Its totient is φ = 27044496.

The previous prime is 30926113. The next prime is 30926131. The reversal of 30926129 is 92162903.

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

It is a cyclic number.

It is not a de Polignac number, because 30926129 - 24 = 30926113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30926095 and 30926104.

It is not an unprimeable number, because it can be changed into a prime (30926149) 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, 62357 + ... + 62850.

It is an arithmetic number, because the mean of its divisors is an integer number (4382280).

Almost surely, 230926129 is an apocalyptic number.

It is an amenable number.

30926129 is a deficient number, since it is larger than the sum of its proper divisors (4132111).

30926129 is a wasteful number, since it uses less digits than its factorization.

30926129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125239.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 30926129 is about 5561.1265944950. The cubic root of 30926129 is about 313.8883431960. Note that the first 3 decimals are identical.

The spelling of 30926129 in words is "thirty million, nine hundred twenty-six thousand, one hundred twenty-nine".

Divisors: 1 13 19 247 125207 1627691 2378933 30926129