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354417972 = 223171978819
BaseRepresentation
bin10101000111111…
…111110100110100
3220200220022001120
4111013333310310
51211212333342
655100223540
711532334356
oct2507776464
9820808046
10354417972
11172072517
129a83abb0
135857209c
14350db0d6
15211acaec
hex151ffd34

354417972 has 48 divisors (see below), whose sum is σ = 880165440. Its totient is φ = 110612992.

The previous prime is 354417967. The next prime is 354417977. The reversal of 354417972 is 279714453.

It is an interprime number because it is at equal distance from previous prime (354417967) and next prime (354417977).

It is a super-2 number, since 2×3544179722 = 251224197753185568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354417977) 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, 35779 + ... + 44597.

It is an arithmetic number, because the mean of its divisors is an integer number (18336780).

Almost surely, 2354417972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354417972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440082720).

354417972 is an abundant number, since it is smaller than the sum of its proper divisors (525747468).

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

354417972 is a wasteful number, since it uses less digits than its factorization.

354417972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040 (or 9038 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 354417972 is about 18825.9919260580. The cubic root of 354417972 is about 707.6826995945.

The spelling of 354417972 in words is "three hundred fifty-four million, four hundred seventeen thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 197 204 394 591 788 1182 2364 3349 6698 8819 10047 13396 17638 20094 26457 35276 40188 52914 105828 149923 299846 449769 599692 899538 1737343 1799076 3474686 5212029 6949372 10424058 20848116 29534831 59069662 88604493 118139324 177208986 354417972