Search a number
-
+
76145630 = 25113753353
BaseRepresentation
bin1001000100111…
…10001111011110
312022021121011112
410202132033132
5123443130010
611320022022
71613140631
oct442361736
9168247145
1076145630
1139a89380
1221601912
1312a10bb2
14a181c18
156a41a05
hex489e3de

76145630 has 64 divisors (see below), whose sum is σ = 156904128. Its totient is φ = 26357760.

The previous prime is 76145627. The next prime is 76145681. The reversal of 76145630 is 3654167.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215534 + ... + 215886.

It is an arithmetic number, because the mean of its divisors is an integer number (2451627).

Almost surely, 276145630 is an apocalyptic number.

76145630 is an abundant number, since it is smaller than the sum of its proper divisors (80758498).

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

76145630 is a wasteful number, since it uses less digits than its factorization.

76145630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 76145630 is about 8726.1463430314. The cubic root of 76145630 is about 423.8527397412.

Adding to 76145630 its reverse (3654167), we get a palindrome (79799797).

The spelling of 76145630 in words is "seventy-six million, one hundred forty-five thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 37 53 55 74 106 110 185 265 353 370 407 530 583 706 814 1166 1765 1961 2035 2915 3530 3883 3922 4070 5830 7766 9805 13061 18709 19415 19610 21571 26122 37418 38830 43142 65305 93545 107855 130610 143671 187090 205799 215710 287342 411598 692233 718355 1028995 1384466 1436710 2057990 3461165 6922330 7614563 15229126 38072815 76145630