Search a number
-
+
531032145441254 = 21938741157388279
BaseRepresentation
bin111100010111110001000111…
…0011001001011000111100110
32120122020011210021000102212222
41320233202032121023013212
51024100412313213110004
65121224444431512342
7216565543414135562
oct17057421631130746
92518204707012788
10531032145441254
11144226517138596
124b6857070886b2
1319a40168aa1b12
14951c1431b26a2
15415d5710a87be
hex1e2f88e64b1e6

531032145441254 has 16 divisors (see below), whose sum is σ = 800767016068320. Its totient is φ = 264110121546240.

The previous prime is 531032145441221. The next prime is 531032145441271. The reversal of 531032145441254 is 452144541230135.

It is a super-2 number, since 2×5310321454412542 (a number of 30 digits) contains 22 as substring.

It is a congruent 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, 75320114 + ... + 82068165.

It is an arithmetic number, because the mean of its divisors is an integer number (50047938504270).

Almost surely, 2531032145441254 is an apocalyptic number.

531032145441254 is a deficient number, since it is larger than the sum of its proper divisors (269734870627066).

531032145441254 is a wasteful number, since it uses less digits than its factorization.

531032145441254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157397215.

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 531032145441254 its reverse (452144541230135), we get a palindrome (983176686671389).

The spelling of 531032145441254 in words is "five hundred thirty-one trillion, thirty-two billion, one hundred forty-five million, four hundred forty-one thousand, two hundred fifty-four".

Divisors: 1 2 193 386 8741 17482 1687013 3374026 157388279 314776558 30375937847 60751875694 1375730946739 2751461893478 265516072720627 531032145441254