Search a number
-
+
30621321041532 = 223131031905733199
BaseRepresentation
bin1101111011001100101001…
…11101101001011001111100
311000102100222111211221112020
412331212110331221121330
513003144431141312112
6145043123553240140
76310213611166164
oct675462475513174
9130370874757466
1030621321041532
11983647a482731
12352674a563050
131411769368860
1477c1191535a4
153817e685c48c
hex1bd994f6967c

30621321041532 has 48 divisors (see below), whose sum is σ = 77692931097600. Its totient is φ = 9330469737408.

The previous prime is 30621321041491. The next prime is 30621321041533. The reversal of 30621321041532 is 23514012312603.

It is a junction number, because it is equal to n+sod(n) for n = 30621321041493 and 30621321041502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30621321041533) 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, 952850532 + ... + 952882667.

It is an arithmetic number, because the mean of its divisors is an integer number (1618602731200).

Almost surely, 230621321041532 is an apocalyptic number.

It is an amenable number.

30621321041532 is an abundant number, since it is smaller than the sum of its proper divisors (47071610056068).

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

30621321041532 is a wasteful number, since it uses less digits than its factorization.

30621321041532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905733322 (or 1905733320 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 30621321041532 in words is "thirty trillion, six hundred twenty-one billion, three hundred twenty-one million, forty-one thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 103 156 206 309 412 618 1236 1339 2678 4017 5356 8034 16068 1905733199 3811466398 5717199597 7622932796 11434399194 22868798388 24774531587 49549063174 74323594761 99098126348 148647189522 196290519497 297294379044 392581038994 588871558491 785162077988 1177743116982 2355486233964 2551776753461 5103553506922 7655330260383 10207107013844 15310660520766 30621321041532