Search a number
-
+
154031111680 = 29560168403
BaseRepresentation
bin1000111101110011111…
…0000011111000000000
3112201120200201012112011
42033130332003320000
510010423431033210
6154432205142304
714062014563305
oct2173476037000
9481520635464
10154031111680
115a362602006
1225a2885a994
13116a9774b44
147652cc30ac
15401794cd8a
hex23dcf83e00

154031111680 has 40 divisors (see below), whose sum is σ = 369313663752. Its totient is φ = 61612443648.

The previous prime is 154031111623. The next prime is 154031111681. The reversal of 154031111680 is 86111130451.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154031111681) 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, 30081642 + ... + 30086761.

Almost surely, 2154031111680 is an apocalyptic number.

154031111680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154031111680 is an abundant number, since it is smaller than the sum of its proper divisors (215282552072).

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

154031111680 is an frugal number, since it uses more digits than its factorization.

154031111680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60168426 (or 60168410 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 154031111680 in words is "one hundred fifty-four billion, thirty-one million, one hundred eleven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 60168403 120336806 240673612 300842015 481347224 601684030 962694448 1203368060 1925388896 2406736120 3850777792 4813472240 7701555584 9626944480 15403111168 19253888960 30806222336 38507777920 77015555840 154031111680