Search a number
-
+
149288754 = 231071271831
BaseRepresentation
bin10001110010111…
…11011100110010
3101101220122200010
420321133130302
5301204220004
622451435350
73461635116
oct1071373462
9341818603
10149288754
11772a693a
1241bb5b56
1324c10254
1415b81746
15d18da89
hex8e5f732

149288754 has 32 divisors (see below), whose sum is σ = 303906816. Its totient is φ = 48882960.

The previous prime is 149288753. The next prime is 149288801. The reversal of 149288754 is 457882941.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (149288753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80619 + ... + 82449.

It is an arithmetic number, because the mean of its divisors is an integer number (9497088).

Almost surely, 2149288754 is an apocalyptic number.

149288754 is an abundant number, since it is smaller than the sum of its proper divisors (154618062).

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

149288754 is a wasteful number, since it uses less digits than its factorization.

149288754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070.

The product of its digits is 645120, while the sum is 48.

The square root of 149288754 is about 12218.3777155562. The cubic root of 149288754 is about 530.4881630256.

It can be divided in two parts, 1492887 and 54, that added together give a palindrome (1492941).

The spelling of 149288754 in words is "one hundred forty-nine million, two hundred eighty-eight thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 107 127 214 254 321 381 642 762 1831 3662 5493 10986 13589 27178 40767 81534 195917 232537 391834 465074 587751 697611 1175502 1395222 24881459 49762918 74644377 149288754