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33020125420 = 22547149431547
BaseRepresentation
bin11110110000001001…
…110010000011101100
310011020020012011121011
4132300021302003230
51020111123003140
623100315515004
72246161302142
oct366011620354
9104206164534
1033020125420
1113004aaaa57
126496458a64
133162ca4b69
1418535ad592
15cd3d45cea
hex7b02720ec

33020125420 has 96 divisors (see below), whose sum is σ = 71588966400. Its totient is φ = 12787057920.

The previous prime is 33020125417. The next prime is 33020125429. The reversal of 33020125420 is 2452102033.

It is a junction number, because it is equal to n+sod(n) for n = 33020125391 and 33020125400.

It is not an unprimeable number, because it can be changed into a prime (33020125429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60365587 + ... + 60366133.

It is an arithmetic number, because the mean of its divisors is an integer number (745718400).

Almost surely, 233020125420 is an apocalyptic number.

It is an amenable number.

33020125420 is an abundant number, since it is smaller than the sum of its proper divisors (38568840980).

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

33020125420 is a wasteful number, since it uses less digits than its factorization.

33020125420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 33020125420 its reverse (2452102033), we get a palindrome (35472227453).

The spelling of 33020125420 in words is "thirty-three billion, twenty million, one hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 47 94 149 188 235 298 431 470 547 596 745 862 940 1094 1490 1724 2155 2188 2735 2980 4310 5470 7003 8620 10940 14006 20257 25709 28012 35015 40514 51418 64219 70030 81028 81503 101285 102836 128438 128545 140060 163006 202570 235757 256876 257090 321095 326012 405140 407515 471514 514180 642190 815030 943028 1178785 1284380 1630060 2357570 3018293 3830641 4715140 6036586 7661282 11080579 12073172 15091465 15322564 19153205 22161158 30182930 35127793 38306410 44322316 55402895 60365860 70255586 76612820 110805790 140511172 175638965 221611580 351277930 702555860 1651006271 3302012542 6604025084 8255031355 16510062710 33020125420