Search a number
-
+
148212930 = 2354940431
BaseRepresentation
bin10001101010110…
…00110011000010
3101022212222220210
420311120303002
5300420303210
622412414550
73446534445
oct1065306302
9338788823
10148212930
1176731628
1241777456
1324924678
141598165c
15d029e20
hex8d58cc2

148212930 has 16 divisors (see below), whose sum is σ = 355711104. Its totient is φ = 39523440.

The previous prime is 148212929. The next prime is 148213031. The reversal of 148212930 is 39212841.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4940431 = 148212930 / (1 + 4 + 8 + 2 + 1 + 2 + 9 + 3 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2470186 + ... + 2470245.

It is an arithmetic number, because the mean of its divisors is an integer number (22231944).

Almost surely, 2148212930 is an apocalyptic number.

148212930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148212930 is an abundant number, since it is smaller than the sum of its proper divisors (207498174).

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

148212930 is a wasteful number, since it uses less digits than its factorization.

148212930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940441.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 148212930 is about 12174.2732842663. The cubic root of 148212930 is about 529.2107988351.

The spelling of 148212930 in words is "one hundred forty-eight million, two hundred twelve thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4940431 9880862 14821293 24702155 29642586 49404310 74106465 148212930