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2961029920 = 255192933587
BaseRepresentation
bin1011000001111101…
…1011101100100000
321122100200220102211
42300133123230200
522031010424140
61205453051504
7133243224202
oct26037335440
97570626384
102961029920
11128a473672
126a7786b94
133825bb714
14201380772
15124e472ea
hexb07dbb20

2961029920 has 96 divisors (see below), whose sum is σ = 7617758400. Its totient is φ = 1083350016.

The previous prime is 2961029899. The next prime is 2961029921. The reversal of 2961029920 is 299201692.

2961029920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2961029921) 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, 71367 + ... + 104953.

It is an arithmetic number, because the mean of its divisors is an integer number (79351650).

Almost surely, 22961029920 is an apocalyptic number.

2961029920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2961029920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3808879200).

2961029920 is an abundant number, since it is smaller than the sum of its proper divisors (4656728480).

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

2961029920 is a wasteful number, since it uses less digits than its factorization.

2961029920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33650 (or 33642 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 2961029920 is about 54415.3463647894. The cubic root of 2961029920 is about 1435.9773792936.

The spelling of 2961029920 in words is "two billion, nine hundred sixty-one million, twenty-nine thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 29 32 38 40 58 76 80 95 116 145 152 160 190 232 290 304 380 464 551 580 608 760 928 1102 1160 1520 2204 2320 2755 3040 4408 4640 5510 8816 11020 17632 22040 33587 44080 67174 88160 134348 167935 268696 335870 537392 638153 671740 974023 1074784 1276306 1343480 1948046 2552612 2686960 3190765 3896092 4870115 5105224 5373920 6381530 7792184 9740230 10210448 12763060 15584368 18506437 19480460 20420896 25526120 31168736 37012874 38960920 51052240 74025748 77921840 92532185 102104480 148051496 155843680 185064370 296102992 370128740 592205984 740257480 1480514960 2961029920